virtualkeyboard: fix building of target "<input>virtualkeyboard".

Fixes a "-Werror=write-strings", and a linking, error.

Change-Id: Iceb768a14e7d091796523640a2e94cb848848f44
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5980
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

VirtualKeyboard: Fold KeyboardLayoutView back into the Keymap preferences one.

Only one #ifdef, the rest is all in basic if-tests. Relatively minimal changes,
and now the virtual keyboard device gets all the improvements made to the keyboard
layout view over the last 6 years.

virtualkeyboard: Delete some of the copied classes and use the originals.

The keyboard view class has too many modifications to be trivially merged.

Build: Add architecture rule for libshared.a.

- As suggested by Ingo, add libshared.a to the architecture name map.
This allows it to be linked by its short name like other frequently
used libraries.
- Adjust all Jamfiles referencing the lib accordingly.

virtualkeyboard: code style fixes

virtualkeyboard: add TRACEing and make the keyboard work

virtualkeyboard: fixes; input_server now displays keyboard

virtualkeyboard: some fixes

Add initialization helpers.

Start of a virtual keyboard input_server add-on

Done during GCI 2014.

Some files copied from the Keymap preferences.

virtualkeyboard: code style fixes

virtualkeyboard: add TRACEing and make the keyboard work

virtualkeyboard: fixes; input_server now displays keyboard

virtualkeyboard: some fixes

Add initialization helpers.

Start of a virtual keyboard input_server add-on

Done during GCI 2014.

Some files copied from the Keymap preferences.