[EGD-5688] Fixed specialInput selection blocking next action

Adding character by specialInput caused next input action
to be blocked.

[EGD-5598] GuiTimer refresh window on count

Added Gui timer auto refresh window on count and additional
name based API to detach timer from window. Added
TimerIDGenerator and exception throw on creating user timer
with same name.

[EGD-5795] Fix Some MMI data responses  are showing only title

Fix message processing for call waiting data response
Fix message processing for call barring data response

[EGD-5706] Refactor creating audio device

Audio devices are created in the audio subsystem and it is not possible
to send a device to bt service upon creation.

Introduce hookable audio device factory to allow sharing bluetooth
audio device. Move audio devices from bsp to audio allowing removal of
unwanted bsp -> audio dependency.

Remove Bluetooth proxy device which turned out to be a dead end.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[EGD-5557] Contact Endpoint pagination

Pagination added for contact endpoint.
Introduced PagedContext and query message for contacts that returns
the required contacts together with the number of all contacts in db.

[EGD-5787] Fixes re fallback font docs

Fixed proper info about default fallback font.

[EGD-5787] Fix font-rendering docs

Added small fixes to the i18n article.

[EGD-5787] Added additional links to i18n article

Added additional links to i18n article
inside main README.md

[EGD-5787] Adding font-related docs to i18n article

Added missing content regarding adding special glyphs
and rendering the font inside MuditaOS

[EGD-5772] Add pause/resume API for media player

Simple version of pause / resume APIs has been added
for media player.

[EGD-5777] Refactored status bar battery indicator

Added an option to display a battery level in percentage

[EGD-5774] Fixed text char removal crash

Fixed text char and blocks removal handling and added
tests covering crashes.

[EGD-5794] Fix stack size overflow

There is not enough space in service cellular
stack which is causing debug problems.

[EGD-5028] Add batt critical level db

Battery critical level sotred in
database.

[EGD-5788] Fix json formatting in message endpoint responses

Responses had redundant anonymous objects which impeded parsing jsons.

[EGD-5697] Add helper functions for phone modes

They make it easier to write a code dependent on phone modes.

[EGD-5697] Framework for phone modes introduced

It allows to transmit phone modes information to listening services.

[EGD-4394] Add BT device name change

Added handling of BT device name changing

[EGD-4342] Remove audio profile db callback

This callback is not needed.

[EGD-5484] Add BT scan documentation

Added documentation related to BT scan operation