[EGD-5166] Add query-callback synchronization mechanism

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

[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-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-4153] Use actions instead explicit applications switch. (#1032)

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-4217] Convert service-db to library

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

[EGD-4288] refactor global data (#959)

Reduce firmware size by refactoring global data defined in public
headers.

Each global variable which require runtime initialization adds
initialization code to every translation unit which includes the header
where the variable is defined and declared.

[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.

[EGD-3743] Removed old doxygen copyright statements from project.

[EGD-3743] Update copyrights in fies

[EGD-3597] Shape rendering refactored. (#827)

EGD-4036 Application windows - added register mechanism

* Moved ApplicationLauncher to separate files - declutering
* WindowsStore renamed to WindowsFactory - Store needs to be splitted toavoid antipattern
* Options window build dynamically onBeforeShow
* Dialog windows dynamically built

[EGD-3985] Removed unique_ptr to vector for DatabaseModel updateRecords Method.

EGD-2955 EGD-3588 Timers fully refactored & updated (#721)

* Timers now are Application thread safe
* Timers now have consistent API independend of Application (no more c style timers)
* Timers can have either: callback or override onTimer() method - this
  way we can create more complicated timers or just use existing ones
* gui::Timer added via adapter class GuiTimer to decouple sys::Timer
  with gui::Timer
* Fixed race in wrapper
* Updated docs
* fixed using std and cpp_freertos and DataReceivedHandler hidden in Application.hpp

[EGC-2974] Fix typo in ContactRecord function name