[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5133] Fix settings bus add duplications

Changed Bus Channels vector to set to prevent
duplicates and cleaned logging.

[EGD-4921] Add next harness test cases

Test harness extended with additional tests:
- Making a call to a specific phone number.
- Calling back to the last number from the call log.
- Searching for SMSes with a phone number filter.

[EGD-4925] Change new filesystem handling implementation in module-gui. (#1193)

Due to vfs deprecation there is need to remove all vfs calls from code. This PR covers module gui. There are some modifications in other modules included which are necessary because of build system issues.

Merge branch 'master' into stable

[EGD-3842] Modify events records tests and add providers fields to DB (#1138)

[EGD-4446] Change: new filesystem handling implementation in module db. (#1052)

Due to vfs deprecation there is need to remove all vfs calls from code. This PR covers module database. It also contains minor fixes in module-db.

[EGD-4343] use new settings in ServiceAudio (#997)

* [EGD-4343] ServiceAudio moved to new settings

Merge branch 'master' into stable

[EGD-4553] Notes search engine implemented. (#1112)

[EGD-4487] Application notes implemented. (#1094)

* [EGD-4487] Implementation of notes application.

[EGD-4150] Change filename i18 to i18n (#1108)

Change filename of internationalization files from i18 to i18n.

I18n should stand for internationalization, not i18. That's why I changed in 'module-utils' name of the folder 'i18' and both .cpp and .hpp files to 'i18n'.

[EGD-3572] SettingsTable exchanged to settings::Settings (#968) (#1044)

[EGD-3572] Application has an instance of Settings - removed from derived apps
[EGD-3572] Application is the owner of Settings handling for its windows/widgets
[EGD-3572] Settings header moved to service-db public section

[EGD-4167] Add n display languages loaded from files (#1047)

[EGD-4073] Alarms database rework (#1006)

Adaptation to the query approach.

[EGD-3512] Create ICS Parser (#892)

-Create application desktop endpoints for calendar events
-Modify Calendar Database Interface
-Create ParserICS lib
-Create calendar events endpoints test
-Create UT for ParserICS

[EGD-4484] Cellular - read buffer on UART Line Idle (#1065)

[EGD-4399] no response fix (#1061)

[EGD-4400] added contact ID sending after contact adding

Co-authored-by: SP2FET <bartosz.cichocki@mudita.com>

Revert "[EGD-3572] SettingsTable exchanged to Settings::Settings (#968)" (#1035)

This reverts commit f11bc1f0d0120c04ee6f826f75c9e8a9f5894602.

Co-authored-by: Hubert Chrzaniuk <hubert.chrzaniuk@mudita.com>

[EGD-3572] SettingsTable exchanged to Settings::Settings (#968)

[EGD-3572] Application has an instance of Settings - removed from derived apps
[EGD-3572] review issues resolved
[EGD-3572] shared_ptr -> unique_ptr
[EGD-3572] Primary Key for settings_tab:path
[EGD-3572] empty values handling