[MOS-807] Fix MTP root path

Fixed MTP root paths for both Harmony and
Pure due to the MTP implementation
not supporting hierarchical directories.

[MOS-807] Update scripts

Added update scripts for both variants:
UDM update and further 'normal' updates.

Minor updates to the directories layout

[MOS-807] Unpacking update package

* Added unpacking and validating of
update package
* Removed 'utils-bootconfig'
* Added 'tar' module
* Minor compilation issues fixed

[CP-1734] Create factory reset reboot UI

Create window that will be shown when the
device turns off first time after factory
reset request made from PureOS.

[MOS-803] Further fixes for sync

Fixed paths for sync process
Added timeout for windows in recovery processes

[MOS-803] Fixes

Fixes for deviceInfo endpoint, scripts
 and missing migration files in sysroot

[MOS-803] DeviceInfo endpoint update

* Added some changes to the DeviceInfo endpoint
* Updated relevant code accordingly
* Removed unneeded paths definitions
* Minor bug fixes

[MOS-835] Per product layout of database migration scripts

Implemented DB init migration and version.json update

[MOS-783] Fixed tests and simulator for Harmony

Fixed tests and simulator for Harmony
after implementation of new filesystem
structure.

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

Now factory reset works both from ecoboot and from menu

[MOS-783] Working Pure simulator after partition changes

Fixed iosyscalls so that Pure simulator
works after directory structure changes.

[MOS-786] Added A/B booting support in OS

Added basic support for A/B booting

[MOS-783] First part of new dir structure implementation

    Works:
    - generating .img for Pure;
    - Pure boots after flashing new image and
    seems to be working fine;

    Not yet:
    - generating update package;
    - generating image for Harmony;
    - simulator;
    - path-related unit tests fail
    due to paths being hardcoded
    in test scenarios.

[CP-1427] Cleanup leftovers after old backup restore implementation

The synchronization mechanism has been freed from the constraints
of the old backup and restore implementation.

[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-694] Move DB initialization from OS to build scripts

* Switched to DB initialization at compile time
* Organized and cleaned up db files directories(not finished completely)
* Fixed DB related unit tests
* Minor improvements to CMake
* Small fixes for GCC12 build

[CP-1484] Add new mechanism for data synchronization between MOS and MC

This mechanism is similar to the current backup implementation,
but is stripped of irrelevant data that is not required by the
MC to perform data synchronization.

[CP-1560] New user directory structure

* New user directory implemented.
* Generate user directory structure at compile
time instead of at runtime(Pure/Harmony).
* Changed MTP root path to /storage
* FileIndexer: Minor refactor
* FileIndexer: Fixed handling incorrect/non-existing
scan directories.
* Updated Repository module to correctly handle
many assets paths.
* MultimediaDB: Minor unit tests refactor and fixed
some issues when using simulator.
* MultimediaDB: Added new queries and unit tests
* Harmony/Relaxation: Updated to correctly
use audio assets from more than one source.
* Harmony/Relaxation: Updated model and list items
provider.
* Harmony/Relaxation: Fixed stack overflow in audio service

[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.

[CP-1579] Fix correct password inserted during Pure boot is not accepted

Fix the issue when the USB cable connected to the device during boot up
and Center requested a passcode before the device was fully up.
What caused a 'Wrong passcode' message after typing a passcode
via Center.