[EGD-5880] Change mode related volume logic

Volume logic has been changed to make the
values independent from selected mode.

[EGD-5967] Add blank screen when off

Present blank screen to
inform the user that phone
is off

[EGD-5326] Fixed AT commands harness utility

We can now use test harness to send and check at commands

[EGD-5326] Fixed system messages logging crash

with messages debug utility and error on memory there  was crash

[EGD-5983] Remove volume label from music app

Removed volume label from application music player.
Volume level should be shown using new popup system.
Introduced minor fixes in music player.

[EGD-5741] Change cellular DataReceiverHandle refactor

All messages have been moved to separate handlers.

[EGD-5963] Unify type of UUID field in all endpoints

UUID is no longer stored as a string, since we are not
going to use 128b UUID.

[EGD-5059] Fix SMS thread UX issues

This PR correct following global UX issues that were noticed in SMS
threads:
- invalid Nav-bar margins (30px instead of 20px)
- invalid NAv-bar hight (54px instead of 50 px)
This PR corrects following SMS threads UX issues:
- invalid inputText's left margin (10px instead of 0px)

[EGD-5982] Fix no window refresh after pairing

Fixes no refresh after finished scan

[EGD-5981] Fix BT scan stop issue

Btstack's scan stop call was not working properly thus force stop
function has been added

[EGD-5980] Fix BT paired devices list

After pairing more than 1 device the paired device list showed
only the last paired. This commit fix this issue

[EGD-5047] Add support for newlib time

Add support for newlib time standard syscalls.

[EGD-5926] Unmount VFS partitions on close

There is no shutdown procedure reflecting sysInit,
but filesystems can be unmounted directly before returning
from main()

[EGD-5771] Create post update info window

Add post update info window.

[EGD-5927] Redirect access to '/lib' in emulator

Sanitizer was trying to access libraries after all objects
got deleted and hung in a nested bug state.

[EGD-5898] Fix test send message

Added extra time to send message

[EGD-5977] Fix empty BT devices list after pairing

After changing flow of settings windows, the stopScan command
is being executed right after executing pairing, so cleaning the
scan devices list is being done on scan start

[EGD-5621] Change call request facory

Commands crated by call request factory had the wrong timeout.
Now timeout is defined by command.

[EGD-5966] Fix unit test build linker error

Problem was created by not extending `VisitorMock`
to mock new method of abstract `GuiVisitor`

[EGD-5948] Fix build pure image for all target

Currently image is generated as a separate rule, but we need
to build image for the all targets.