[EGD-8066] Fixed Bell audio assets path

Paths had bell in them, not needed

[EGD-8145] Download asset untaring accepts any relative path

download_asset.py:
    either ./ or none - both are proper relative paths
music assets are taken from the assets release
    Removed bell mp3 assets from MuditaOS repository
    Removed assets for PurePhone from the repository

[CP-858] Fix test security

Add security EP API to QAMuditaHarness repo.
Refactor security EP test to make it work.

[EGD-7773] Post review code cleanup

as in status

[EGD-7773] Exit with delay fix

fix

[EGD-7773] Add popup drop possibility

Added popup drop possibility with custom callback onPop to comply
with Bell requirements

[EGD-7773] Fix Bell alarm popup handling

Workaround no longer needed

[EGD-7773] Popups stack poc

Stack plus minimum tests added
Updated to master
Removed useless or adressed TODOS
Constants name applied
Renamed searchModel to searchRequestModel
Review applied
We should remove legacy window names
Bell names fixes

[EGD-8144] PurePhone assets split mechanism

As we do not have artifactory etc. we download public assets from
public repository.

download_asset mechanism:
* added tar with unpack for releases on github
* download script create parent directory
* When there is no parent directory - then create it, not the file as
  dir
* Lessened logs status
* download release files for Pure works ok
* added option to load multiple elements from tar
* added option to load stuff from own PC

CMake fixes:
* Add option to not pass Luts.bin to the image
* Added dependencies:
    * Assets cmake
    * DiskImage
    * Generall: dependencies instead of runtime globals
    * Fixed UT for bell

Added description file to fownload files:
* Files downloaded from MuditaOSPublicAssets repository Bell
* PurePhone assets copied to build dir not to image dir
* Added test assets and bell assets
* Luts and test assets unpacked to right place
* Luts proper on img on phone

EGD-8066 sq

[EGD-8121] Fix cellular sleep mode enter without SIM

Without a SIM card, the modem will be able to enter sleep mode,
which will significantly extend the battery life of the phone.

[EGD-8131] Add Reboot/Poweroff for _platform_exit()

Add support for Reboot and Power off for the
_platform_exit code.

Add _platform_exit mode handle

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-8127] Add FreeRTOS return to main when scheduler exits

Add support to the FreeRTOS to be able to back to main
functon when the scheduler is terminated.

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-8094] Change mp3 decoder replaced with dr_mp3

Mp3 decoder replaced with dr_mp3.

[EGD-8104] Fixed return to home actions on phonebook, ringtone and alarm

Fixed return to home actions on phonebook, ringtone and alarm.

[EGD-7979] TextLine split and cleanup to support SingleLine text

TextLine split and cleanup to support SingleLine text.

[EGD-7920] Fix GUI in adding / removing contacts

Adding and immediate removal of a contact made it possible
to edit a contact that no longer existed.

[CP-914] Update factory reset test

Moved the test out form pytest/service-desktop
Improved test scenario to check for the onboarding screen
Used Factory Reset API for Harness

[CP-829] Move and fix test_battery_file.py

Moved battery file test out of service-desktop
Replaced deprecated check file op with get file op to test
if the file is present.

[EGD-3363] Added color setter to Text

Added color setter to Text.

[EGD-7573] Add support for reliance edge fs

Added support for reliance edge file system.
The initial port is done.
The whole effort is still WIP.
Left a note in readme file what should be done next.