[EGD-5689] Add clang tidy to jenkins

Bring up clang tidy to Jenkins workers.

[CP-143] Set 204 code for responses with empty body

Body field was always added to response json, even if
it was containing only null. Now empty body is
not attached to response json, and status code
for such message is set to 204. Additionaly some
minor cleanup in service desktop was done.

[CP-142] Update tests with 204 response code

Uptdate python test scripts with 204 (NoContent) code
for responsens with empty body.

[EGD-6790] Fix cellular sleep mode

Fix of cmux communication in order to
prevent polling thus provide sufficient
time of inactivity to get into sleep mode

[BH-393] Create separate math lib

Create separate math lib from Math.hpp file.

[CP-187] Fix stack overflow on passcode decoding

When passcode is passed as json string, each of digits needs to be
parsed as separate character with std::atoi. Replaced the string
with json array of integers to simplify decoding and avoid SO.

[EGD-6917] Screen light in automode does not turnoff itself

The bug was introduced by EGD-6794. The bug is caused by wrong mode
selection in `ScreenLightTimer`'s definition. The current design
defines auto-turn-off only for automatic mode (EGD-6655).

[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.

[EGD-6544] Switch for VoLTE

Turn off/on VoLTE during compilation

[BH-367] Convert UCS2 to library

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

[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-369] Fixed UTF8 unit test CI run

Fixed name of UTF8 unit test to make it run on CI

[EGD-6884] Fix autolock in sms template

Fix of autolock behavior on sms template
window while declining call

[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

[BH-368] Moved board to library

New PR for the same task. Old one made too big mess after rebase

[BH-387] Move utils/state to service-antenna

utils/state is only one header used in one service,
moving it to service-antenna