[BH-495] Cleaned up Bell Hybrid App cmake

Decoupled application-bell-main from other targets, efficiently
decreasing build time during app development, hidden private
headers, defined dependencies

[BH-388] Turned music player app into library

Turned application music player into separate library,
specified private and public include directories and
dependencies

[BH-372] Turned i18n into separate library

Turned i18n module into separate library moving source files, test
files and creating separate CMakeLists.txt, fixed other modules
link targets, fixed paths and sorted some lists

[BH-374] Librarize application-antenna

Add apps-common, librarize application-antenna

[EGD-6918] Timestamp clean up

Removal of not needed methods
Addition of unit tests
Fixes according to newst design guidelines
Added new seprate interface cmake lib for time constants

[BH-515] Create main Bell app

Create main Bell app

Merge branch 'master' into stable

[BH-353] Add Documentation for main targets

* clean up mimimu required cmake version
* fixes for release workflow

Add documentation for targets, fixes for cmake
and release workflow.

[EGD-6544] Switch for VoLTE

Turn off/on VoLTE during compilation

Merge branch 'master' into stable

[BH-376] Utils time turned to separate library

Turned module-utils/time folder content into separate library,
cleaned up CMake libs dependencies, fixed include paths

[BH-370] Convert utils common_data into a libs

Create clipboard and eventsore libs

[BH-369] Turned UTF8 into separate library

Moved utf8 files, formed separate library, fixed include paths,
added utf8 library as dependency to every other target that
uses it, clang-formated utf8 files, cleaned up tests cmake script,
moved utf8 unit test

[BH-371] Replace gsl with mainline submodule and move to third-party

Replacing loose gsl files with gsl mainline project as submodule
and moving it to third-party

[EGD-6867] Renamed TopBar into StatusBar

Renamed TopBar into StatusBar.

Merge branch 'master' into stable

[EGD-5711] Finalized onBoarding application

Finalized onBoarding application. Added no sim ready window
and sim response window. Created iceBox widget. Fixed various
onBoarding errors and misalignment.

[BH-361] Move date to separate directory

Move date to separate directory

[EGD-5404] Added onBoarding Sim select window

Added onBoarding Sim select window and skip sim select.
Removed old PhoneLock settings selector from settings.

[EGD-6637] Cleanup locks structure

Renaming existing locks namespace and created proper directory
structure.