[EGD-7044] Strip down calendar code

Stripping the calendar code to provide only
MVP defined functionalities

[EGD-6956] Add offline calls notifications

Changed calls notifications for offline mode

[EGD-6957] Add sms notifications in DnD

SMS notifications configuration in do
not disturb phone mode

[EGD-7048] Remove "Automatic time zone" from settings

From now on in the settings, instead of the two options:
"Automatic date and time", and "Automatic time zone"
there will be only the first one, which allows to
manually set the time and time zone.

[EGD-7006] Removed sensitive data from db

Sensitive data removed from logs in module db and service db.

[EGD-6955] Add calls notifications in DND

Add notifications for incoming calls in DND
phone mode according to design.

[EGD-7003] Removed sensitive data bt

Sensitive data removed from logs in module bluetooth
and service bluetooth.

[BH-464] Moved USB stack to third-party dir

Moved USB stack, defined separate library and its dependencies,
assigned library to specific sections in linker script, reduced
build time by more than 10 percent thanks to ending building
usb stack file both in module-bsp and module-vfs

[CP-253] Add checksum to package transfer

Added CRC32 to FS download command

[EGD-6699] Add timezone selecting window

Implementation of the time zone selection from the list
of available cities.

[CP-270] Replace CRC32 library

Replaced CRC-32 lib from csbruce.com/software/ with
github.com/stbrumme/hash-library

[CP-183] Do not log sensitive data in service-desktop

Remove potential printing of user-sensitive data.

[EGD-6514] HSP volume control

Bluetooth headset profile volume control
introduced. Small refactor on A2DP volume control
done.

[EGD-6986] Add Store timezone in settings db

Adds storing current timezone in settings database.
It allows to proper handling of timezone on system startup.

[EGD-6966] Fixed a switch from call window back

It was possible to enter phonebook even if the phone's locked.
Focused application is not killed on incoming call.

[EGD-5709] Fixed a crash on switching phone modes

Fixed a crash on switching phone modes.

[EGD-6883] Change time settings cleanup

Time related settings are handled by service time now.
utils DateAndTimeSettings replaced by static time service api.

[CP-163] Implement FS Endpoint read file

Implemented get file opration in FS Endpoint

[CP-206] Report Pure serial number in USB descriptors

Added serial number to USB device descriptor

[EGD-5709] Fixed actions support in Call application

Fixed:
- returning from a call window to previous application
- closing SMS templates window if open from call window