[EGD-6454] Remove harness from PR builds

Reorganizing builds and tests, harness will be run by QA Team.

[EGD-4651] Fix CrashDump submodule path

git:protocol requires proper credential, prevents some script to be run
correctly

Merge branch 'stable' - release v0.62.1

add changelog for v0.62.1

[EGD-6416] Add handling of headset keys

Change the volume level using headset keys

[EGD-6422] Add cellular phone mode documentation

Add breif documentation of handling phone modes
is service cellular.

[EGD-5748] Revert remake cellular flow

Reverts changes due to reported issues

[EGD-6425] Update USB submodule version

Restored USB submodule version to HEAD

[EGD-5443] Onboarding date and time window

Add posibility to override bottom bar in Date and Time settings window.
Change primiary action to save in OnBoardingDateAndTimeWindow
Back to previous window after settings date/time in onboarding flow

[EGD-6156] Create crash dumps

Integrate the CrashCatcher library in order to store phone state after
a fault occurs. The dumps are stored in the CrashCatcher hex format and
can be debugged using the CrashDebug stub built for x86_64 via the
'debug_crash_dump.sh' script.

[EGD-6388] Fix TextLine addition and deletion with scroll test

Fixed missing line start condition memorizing on empty blocks
removal.

[EGD-5913] Fixed language assets fallback load

Fixed language assets fallback load bug causing invalid
information display on startup.

[EGD-5909] Fix disable test_usb_echo.py

Test checked for echo mode being enabled, and continued
execution while echo mode was off.

[EGD-6383] Add HW initialization for headset keys detection

Replaced timer-based hander with IRQ handler to get
  headset status

Added initialization for headset key press detection

[EGD-6322] Add rejecting incoming calls in dnd mode

Adds rejecting incoming calls in Do not disturb mode.

[EGD-6121] Add offline mode in service cellular

Adds entering and leaving ito offline mode in sevice
cellular. Outgoin SMS and calls are blocked Proper popups
are shown in applications Call and Messages.

[EGD-6415] Do not silently crash on empty image name

Image should not silently crash with empty or incorrect image name.

[EGD-6413] Update CI Debug for UT Release for harness

Split build types for UT and Harness tests.

[EGD-6376] Fix for no response on SIM pin confirm

CellularSimPinDataMessage wasn't handled by ServiceCellular
which caused that GUI didn't receive any response and stuck in
last known state.

[EGD-6351] Add Factory reset window

Add Factory reset window to Settings