[BH-1639] Add welcome message with charging info

Add new bell welcome window
Add new close reasons
Add new actions
Bump assets version
Remove bold text from welcome message
Remove bold text from onboarding popups

[MOS-903] Remove reboot to USB MSC mode

Remove mechanics enabling to perform reboot
to MSC mode by sending request to one of the
endpoints via serial port, as it is not
implemented in bootloader and may potentially
be unsafe.

[MOS-237] Removed unnecessary workaround for system reboot

Removed workaround for rebooting into recovery (update)

[MOS-851] Remove factory reset screen from backup and restore

Fix of the issue that factory reset screen
informing user of need to manually turn
on the phone to continue the process
was appearing also when restarting to
backup or restore.

[MOS-786] A/B Booting - fixed factory reset from menu

Now factory reset works both from ecoboot and from menu

[MOS-786] Added support for A/B boot codes in OS

Further implementation of A/B booting

[CP-1424] Refactor backup and restore endpoints

Redesign of backup and restore endpoints in the
service-desktop to delegate responsibility for
execution of the actual backup and restore process
onto the Updater.

[MOS-275] Fix alarm rings on the low battery screen

When we had a critical battery level and the alarm clock rang,
it was impossible to turn it off.

[MOS-788] Fix incorrect total CPU usage in logs

After a long time, a counter overflow appeared

[MOS-775] Create run-time statistics for tasks

Every hour, statistics of tasks that put a heavy load
on the CPU will be logged

[MOS-424] Improvement of logger module

Due to losing bytes the logger has a worker
which is responsible for dumping logs to
the file. The logger also has its own timer
to dump logs every 15 minutes. EventManager
is not responsible for interval dumping logs
now.

[MOS-662][MOS-301] Fix E-ink shutdown while restoring data

While restoring system data the timer can turn off power of E-ink
to save the power. To avoid this situation we need to power on
the E-ink before wiping out the display. The restore procedure
also performs reversing services list to close. In this case
we do it twice so the order is wrong.

[MOS-676] Fix destroying wrong sentinels

If the service is closed the governor removes connected
sentinel. The base iterator refers to the element that is next
in the reversed list. Adding std::next the iterator points to
the correct element.

[MOS-670] Change clang-format AlwaysBreakTemplateDeclarations to Yes

Add --all and --fix-all options to style-check-hook

[MOS-598] Improved keyboard responsiveness

Add sentinel that increases and hold the CPU frequency
after a button press event

[MOS-298] HALize ServiceEink

Add HAL to ServiceEink
Remove dead code from Linux eink substitute
Fix LUTS.bin refresh problems on simulator

[MOS-389] Fix phone stuck on shutdown screen

The phone sometimes remained on the power off screen
during system shutdown.

[MOS-266] Call StateMachine implementation

With some tests, documentation and so on

[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.

[MOS-380] Sentinels for each added that removes bad data

As in topic