HaikuDepot: Show Publish Date

Add a column to the table to show the publish
date. Also add text on the featured packages
view to show the publish date. Supports
sorting.

Fixes #13006

Change-Id: I19d9bc5bf7f44b5673c2ade5d00de8fdadbe1b06
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4649
Reviewed-by: humdinger <humdingerb@gmail.com>
Reviewed-by: Andrew Lindesay <apl@lindesay.co.nz>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

HaikuDepot: Check User Auth on Start

The user might have changed their authentication details
on the server and the client won't detect this until
they go to do something. Instead, if possible, check
this as the client starts. Also check that the user has
agreed to the current user usage conditions.

As a side-effect this generalizes the logic for process
coordination in the main window and also fixes some bugs
in the main window's progress display as the application
starts.

Relates to #15209

Change-Id: I4c9620648819ecd14fb095e4cb2c66fe7b2a0920
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2467
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

HaikuDepot: Display User's Usage Conditions

A HaikuDepotServer may have previously agreed to
user usage conditions. If this is the case then
they are now able to view those conditions. There
were some problems with date formatting in this
change and so the date formatting logic has moved
into the HaikuDepot source code temporarily until
issues with the BDateTime class can be resolved;
most likely as a separate piece of work.

Relates to 15209

Change-Id: Ic3e5413d9139f410d7f7e8b566d4c56352dd2778
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1870
Reviewed-by: Stephan Aßmus <superstippi@gmx.de>

HaikuDepot: Categories from Server

The list of categories for packages is currently
hard-coded into the HaikuDepot desktop
application. This change will change that so that
the list is obtained from the HaikuDepot Server
system and is always up to date with the server's
list of categories.

Change-Id: I757732f4d771e1599d6ad9c85cd65905640de928
Reviewed-on: https://review.haiku-os.org/c/1478
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>