Merge branch 'master' into stable

[EGD-5166] Add query-callback synchronization mechanism

Receiver object cancels the callbacks at the end of its lifecycle.

[EGD-4968] Change GUI service to optimize flow and memory management

Gui and Eink services refactor.
Displaying frames performance optimization.
Critical resources management.

battery renames, clean up, degreasing

[EGD-4932] new battery icons + battery in TopBar rework

[EGD-4727] Change Torch hardware control

Change way of button usage

Merge branch 'master' into stable

[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-4373] Fix for the unexpected call to onClose() method. (#1048)

[EGD-4267] Don't clean application windows if the application switch is not yet confirmed. (#1040)

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

[EGD-4219] Convert service-evtmgr and service-lwip to library

[EGD-4396] Fixed onClose call at application close. (#1011)

[EGD-4217] Convert service-db to library

[EGD-4216] Convert service-cellular to library

[EGD-4214] Convert service audio to library

[EGD-4200] Message handling refactored. (#974)

[EGD-4213] Convert service-appmgr to library - library (#960)

[EGD-4151] Application manager actions introduced. (#905)

* [EGD-4151] Application manifest structure defined.
* [EGD-4156] Applications registry and basic action handler implemented.