[MOS-266] Call StateMachine implementation

With some tests, documentation and so on

[CP-1232] Extend messages EP API with getThreadByID method

Add API for getting single thread by its ID.

[BH-1449] Fix crash during startup

* Moved all Bell-specific paths to AlarmSoundPaths.
* Fixed loading default layout logic. Currently, there is no
db update schema which in specific cases can lead to
layout setting field missing. In this case, load default layout and
update missing db field.
* Added support for Aarch64 Linux.

[BH-1471] Add confirmation screen at layouts settings

Add confirmation screen at layout settings

[BH-1449] Fix gui/eink dependencies

* Dependencies between service-gui and service-eink
have been correctly defined.
* System close routine was replaced with the sequential one
which should solve many bell issues.
* It also fixes BH-1406 and BH-1442.
* Fixed some weird CMake issues in module-audio and
several other modules.
* Fixed service-gui closing routine
* Removed unneeded messages/states from service-gui/eink.
* Enhanced app-mgr closing routine. Fixed closing action handling.

[BH-1444] Vertical layouts font distance

Increase distance between numbers on vert. layout

[BH-1448] MTP closing routine and VCOM reset routine

MTP closing routine and VCOM reset routine

[BH-1433] Chime Volume Model Fix

Fixed saving of volume in Chime Model

[BH-1424] FreeRTOS update

Updated FreeRTOS source code to 10.4.6.
Moved FreeRTOS sources to the third-party directory.
Added necessary changes to the CMake configuration.
Split FreeRTOSConfig.h. From now, each board has its own.
Added missing log headers.
Minor refactor of the module-os cmake.
Fixed stack overflows in bell application main and time service.

[BH-1432] Split Language Display Handling

Separate implementations of handleDisplayLanguageChanged()

[BH-1450] Vertical layout fix for 24H format

Vertical layout fix for 24H format

[BH-1408] Main alarm stops

Cherry pick of the missing PR.

[BH-1411] Layouts settings arrows adjustment

Layouts settings arrows adjustment

[BH-1433] Meditation Timer Gong Volume

Chime Volume Model implementation

[CP-1080] Collect contacts notifications in outbox ep

When contact record is created/updated/removed during
connection with Mudita Center, notification of that
action should be collected in outbox endpoint to
keep contacts data synchronized between MuditaOS
and Mudita Center.

[BH-1440] ServiceDesktop crash during startup

Fixed.

[BH-1438] Bell crash during start

Fixed.

[MOS-288] Split default and fallback fonts to separate entries

And fix emojis display

[MOS-240] PVS Studio analysis bugs fix

Fixes to major part of issues found
by PVS Studio static analysis
mainly micro-optimisations

[BH-1434] Fix Bedtime Tone Return

Fix audio playback on return