[MOS-827] Fix looping on the SIM card selection screen

It was not possible to finish onboarding properly
when we selected a SIM card without an active PIN

[MOS-816] Add parse and filter IMSI

Added reading IMSI and parsing US MCC and MNC.
MCC and MNC are filterd if they are TMobile US.

[MOS-821] Adjust VoLTE GUI basing on operator

When VoLTE isn't permitted for the current SIM
card's operator, display information only.
Otherwise, display a switch.

[MOS-800] Add a popup for changing the SIM card

Sometimes the process of changing the SIM card
takes a few seconds and the user needs to be informed
that something is going on in the background.

[MOS-660] Fix disappearing button in PIN entering screen

When we returned from the SOS screen to the PIN entry screen,
the "confirm" button disappeared.

[MOS-823] Update 'misc' submodule reference

Added a possibility to use a custom GDB for crash analysis.

[MOS-811] Make SMS modem domain in line with voice

Ditto

[BH-1594] Fix information displayed during onboarding

Fix inactivity information of shortcuts.

Fix text for one of the shortcuts.

[BH-1603] New Relaxation UI

Add new UI to Relaxation application.
The user can use loop mode now.

[BH-1603] Rename BGSounds to Relaxation

Rename all files and classes. Only
filesystem paths have old name due to legacy.

[BH-1598] Add clock faces with dates

Add classic and vertical face with dates for both 12h and 24h format.

Fix centering of battery indicator when level is smaller than 100%.

Fix incorrect time format of the alarm in clock face settings.

Change placement of battery and time format indicators on
ClassicWithAmPm screen while charging.

[MOS-809] Remove dead code around celular channels

Ditto

[MOS-793] Connect GUI and modem VoLTE steering

Additionally, fixed many covert bugs that emerged due to
modem restarting.

[MOS-641] Fix SIM cards window

Creating menus and actions depending on the SIM card
lock status.

[CP-1666] DeviceInfo request should return "SerialNumber" for Harmony

Add reading serial number from emmc partition
Add serial number to body response for deviceInfo endpoint for Harmony

[BH-1594] Add shortcuts instruction

Shortcuts instruction is a new functionality
during the Onboarding process. It shows hints
on how to use buttons.

[MOS-792] Added VoLTE setting in db

VoLTE enabled/disabled state is now stored in settings
database. VoLTE is enabled or disabled to mach setting
during modem initialisation.

[MOS-801] Fix memory handling around NetworkWindow

Added the missing window destroyer.

[BH-000] Update changelog for Harmony 1.7.0

Add missing entries.

[CP-1713] Publish OS API as MVP to our community

Publishing Protocol Description section to our community.
Publishing two endpoints: Device Info Endpoint and Contacts Endpoint.