[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.

[EGD-2489] Enable full newlib

Newlib nano is an optimized for size version of newlib libc library.
While newlib nano is smaller in size, it is also noticably slower than
the full version -
https://interrupt.memfault.com/blog/memcpy-newlib-nano

Moreover, full newlib provides native possiblity to printf 64-variables,
including double and float.

There was hard fault while trying to enable full newlib whithout
recompilling memcpy implementation with -mno-unaligned-access compile
option.
It was failing for missalinged memory access during memcpy.
Similar issue is described here -
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1857469

[EGD-8081] Bump up dr_flac version

Bumped up version of dr_flac library to recent version.
Unified decoder API and made sure it is working as expected.

[EGD-7993] Fix memory leak after import contact via MC

Reducing the memory allocation for re2,
which results in a change of the algorithm from DFA to NFA,
which consumes less resources.

[EGD-7860] Fix for call error flow

Make sure it is not possible to request a call twice.
Added new error windows for general call error and
no network connection.
Make sure there are no issues when call is requested
from external app e.g. from callog or phonebook.

[EGD-7860] Fix building of application antenna

It was not compiling before

[EGD-8076] Replace wav decoder by dr_wav

Replace plain straigh waw decoder by the dr_wav library.

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

[EGD-8075] Add dr_libs as subrepo

It adds dr_libs as third party subrepo.

[CP-830] Merge Backup and Restore tests

Merged Backup and Restore tests

[EGD-8002] Added SSP, fixed some minor issues, removed obsolete code

ssp seems working
minor crash fixups
copy lacks patched
obsolete code removed
Devicei tests added for added code and cleanup
Added missing tests for new functions
Code cleaned up a bit - mostly moved to cpp

[EGD-7871] Fix refreshing calllog details after editing contact

After editing a contact from the calllog level,
the calllog details will be refreshed.

[EGD-8083] Add wallpaper option

Added connection of wallpaper window to settings

Merge remote-tracking branch 'origin/stable'