Prepare for ICU update

- libicule and libiculx do not exist anymore in newer ICU versions
(harfbuzz replaces them), but we didn't actually use them, so remove
them from the build feature and from the package dependencies
- Add namespace usage marcos since the newer ICU packages put ICU things
in a namespace, making it easier to have multiple versions of ICU used
side by side.

No functional change intended, but this makes it possible to build the
code with either ICU 57 (for gcc2) or 66 (for other architectures).

Locale Kit: Fix PVS V773

Fix BTimeUnitFormat::Formatunction() was exited
without releasing 'timeUnitAmount' pointer.

Change-Id: I1d3cedd3ca376a7874ce5305b31194ae054e1a0c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2911
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Fix style formatting issue in BTimeUnitFormat, update BDurationFormat accordingly.

* Issue: BTimeUnitFormat doesn't incorporate style formatting while
formatting a time unit. Format() does take style as an argument but the
style is not used anywhere. So currently the abbreviated style doesn't
work and by default the time unit is formatted to the full style.

* Fix: Move the style flag from BTimeUnitFormat::Format() to the
BTimeUnitFormat constructors and call the relevant icu::TimeUnitFormat
constructor. Map the Haiku defined style unit to the corresponding ICU
unit. Move the style flag from BDurationFormat::Format() to the
BDurationFormat constructors to map the changes in BTimeUnitFormat.

Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

Fixes #13508

Update icu x86_64 package with namespace renaming enabled.

"Renaming" means the icu namespace is suffixed with the version number,
atm icu_55. Using "renaming" allows to use two different versions of ICU,
thus easing upgrades. For instance haikuwebkit uses a current version of ICU,
while the system uses a newer one after an upgrade.

* Replace all uses of the icu namespace in our public headers, with a macro
defaulting to icu. As the namespace is only used for private fields pointers,
there should be no impact.
* Locale kit *.cpp have to import the macro from <unicode/uversion.h> *before*
including any locale headers. Ditto for a Time preferences cpp file. This way,
the correct current icu namespace is referenced.
* Fixes bug #12057.

B*Format: make immutable and remove locking

The language and formatting conventions can now only be set when
creating the objects. This removed the needs for locking them when
formatting to avoid some other thread changing the format while it's
being used.

Adjust tests and DeskBar TimeView to the API changes.

Fix initialization of BTimeUnitFormat

* The default constructor must configure it for the default locale
* Fix uptime not showing in AboutSystem
* Add a testcase for this

Move time formatting to BTimeformat.

* Harmonize API for all B*Format to take an output BString by reference
as the first parameter,
* Move the FormatTime methods from BLocale to BTimeFormat
* Adjust all callers for BTimeFormat, BTimeUnitFormat and
BDurationFormat.

Make BDateFormat inherit from BFormat again

* Move relevant parts up into BFormat so other format classes can use
those
* Adjust BDurationFormat and BTimeUnitFormat for the changes
* Remove the "default" date format, it is better to keep only a default
locale and let applications create B*Formats from it as needed.
* Creating a B*Format without arguments to the constructor now
configures it for the default locale, which allows for easy use in
standard cases (formatting something with the current language and
format)
* Creating a B*Format is potentially an expansive operation, it is
advised to keep the instance around and reuse it whenever possible.
However it must be "refreshed" when the locale changes, for apps which
supports that, since it keeps a copy of the language and formatting
convention, rather than a pointer to the locale as it did before.

* Merged weak-symbols branch.
* Fixed trivial merge conflict in src/system/libroot/posix/locale/nl_langinfo.cpp
* Fixed gcc 2 compilation of src/system/glue/init_term_dyn.c.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39571 a95241bf-73f2-0310-859d-f6bbb57e9c96

* reintroduced be_locale as global information point for the current locale
values
* added locking to BLocale (needed since the data of the global object may
change any time)
* BLocale no longer passes out pointers to internal objects, it fill objects
passed in by the client instead (just like be_locale_roster does)
* dropped default language as member from RosterData, it is no part of the
default locale
* fleshed out implementation of TimeUnitFormat and DurationFormat, both
of which can now be given a BLocale in order to set the strings being used
during formatting


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38428 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish cleanup sweep concerning the Locale Kit (sorry it got so big):
* refactored private/mutable stuff out of LocaleRoster into MutableLocaleRoster
* moved management of Locale/Time settings file and broadcasting of any changes
out of preflets and into MutableLocaleRoster
* added proper sorting to the listviews of the Locale preflet
* the Time preflet no longer overlaps long timezone names into the actual time
* several fixes with respect to leaking ICU objects, esp. in BCountry
* the locale roster no longer passes out references to its own BCountry object,
but uses copies, instead - this makes locking superfluous, as the clients'
BCountry objects can no longer be changed by the setting a new default
country in the locale roster
* removed pretty useless POSIX-style symbol fetching from BCountry - if we
need that at all, it should live in the dedicated formatter classes
* adjusted readonlybootprompt, dstcheck and Deskbar to the changed Locale API
* refactored existing Time-formatter into TimeUnitFormat and DurationFormat
(the latter of which is now used by AboutSystem)
* added stubs for Date, DateTime and Time formatters
* lots of coding style fixes throughout the Locale Kit and the Locale and Time
preflets
This will probably break most external apps making use of the Locale Kit - it
does break WebPositive.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37831 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update icu x86_64 package with namespace renaming enabled.

"Renaming" means the icu namespace is suffixed with the version number,
atm icu_55. Using "renaming" allows to use two different versions of ICU,
thus easing upgrades. For instance haikuwebkit uses a current version of ICU,
while the system uses a newer one after an upgrade.

* Replace all uses of the icu namespace in our public headers, with a macro
defaulting to icu. As the namespace is only used for private fields pointers,
there should be no impact.
* Locale kit *.cpp have to import the macro from <unicode/uversion.h> *before*
including any locale headers. Ditto for a Time preferences cpp file. This way,
the correct current icu namespace is referenced.
* Fixes bug #12057.

B*Format: make immutable and remove locking

The language and formatting conventions can now only be set when
creating the objects. This removed the needs for locking them when
formatting to avoid some other thread changing the format while it's
being used.

Adjust tests and DeskBar TimeView to the API changes.

Fix initialization of BTimeUnitFormat

* The default constructor must configure it for the default locale
* Fix uptime not showing in AboutSystem
* Add a testcase for this

Move time formatting to BTimeformat.

* Harmonize API for all B*Format to take an output BString by reference
as the first parameter,
* Move the FormatTime methods from BLocale to BTimeFormat
* Adjust all callers for BTimeFormat, BTimeUnitFormat and
BDurationFormat.

Make BDateFormat inherit from BFormat again

* Move relevant parts up into BFormat so other format classes can use
those
* Adjust BDurationFormat and BTimeUnitFormat for the changes
* Remove the "default" date format, it is better to keep only a default
locale and let applications create B*Formats from it as needed.
* Creating a B*Format without arguments to the constructor now
configures it for the default locale, which allows for easy use in
standard cases (formatting something with the current language and
format)
* Creating a B*Format is potentially an expansive operation, it is
advised to keep the instance around and reuse it whenever possible.
However it must be "refreshed" when the locale changes, for apps which
supports that, since it keeps a copy of the language and formatting
convention, rather than a pointer to the locale as it did before.

* Merged weak-symbols branch.
* Fixed trivial merge conflict in src/system/libroot/posix/locale/nl_langinfo.cpp
* Fixed gcc 2 compilation of src/system/glue/init_term_dyn.c.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39571 a95241bf-73f2-0310-859d-f6bbb57e9c96

* reintroduced be_locale as global information point for the current locale
values
* added locking to BLocale (needed since the data of the global object may
change any time)
* BLocale no longer passes out pointers to internal objects, it fill objects
passed in by the client instead (just like be_locale_roster does)
* dropped default language as member from RosterData, it is no part of the
default locale
* fleshed out implementation of TimeUnitFormat and DurationFormat, both
of which can now be given a BLocale in order to set the strings being used
during formatting


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38428 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish cleanup sweep concerning the Locale Kit (sorry it got so big):
* refactored private/mutable stuff out of LocaleRoster into MutableLocaleRoster
* moved management of Locale/Time settings file and broadcasting of any changes
out of preflets and into MutableLocaleRoster
* added proper sorting to the listviews of the Locale preflet
* the Time preflet no longer overlaps long timezone names into the actual time
* several fixes with respect to leaking ICU objects, esp. in BCountry
* the locale roster no longer passes out references to its own BCountry object,
but uses copies, instead - this makes locking superfluous, as the clients'
BCountry objects can no longer be changed by the setting a new default
country in the locale roster
* removed pretty useless POSIX-style symbol fetching from BCountry - if we
need that at all, it should live in the dedicated formatter classes
* adjusted readonlybootprompt, dstcheck and Deskbar to the changed Locale API
* refactored existing Time-formatter into TimeUnitFormat and DurationFormat
(the latter of which is now used by AboutSystem)
* added stubs for Date, DateTime and Time formatters
* lots of coding style fixes throughout the Locale Kit and the Locale and Time
preflets
This will probably break most external apps making use of the Locale Kit - it
does break WebPositive.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37831 a95241bf-73f2-0310-859d-f6bbb57e9c96