[EGD-6697] Fix DateTime tests

Subtractring 0 from current month yields the same date.

[EGD-7000] Removed sensitive data

Sensitive data removed from logs in module-utils
and application settings new.

[EGD-6883] Change time settings cleanup

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

[EGD-6958] Fix rssibar oor exception

This commit fixes out of range exception for rssi indication on topbar.

[EGD-6697] Date and time formatting

Added system locale dependant date and time formatting.

[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

[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

[EGD-6702] Add time zone library

The library is used to manually set the time zone.
It is based on the IANA time zone database.

[BH-515] Create main Bell app

Create main Bell app

[BH-393] Create separate math lib

Create separate math lib from Math.hpp file.

Merge branch 'master' into stable

[BH-373] Convert utils json into a lib

Moving json to a third-party standalone library.

[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.

[BH-367] Convert UCS2 to library

Convert UCS2 to library,
move tests from module-utils/test to UCS2 folder

Merge branch 'master' into stable

[BH-376] Time module unit test decoupled

Decoupled time module unit test from module-db

[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-368] Added missing CMAkeLists

Added missing file