[EGD-5166] Add query-callback synchronization mechanism

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

Merge branch 'master' into stable

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

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-4217] Convert service-db to library

[EGD-3809] Calendar changes after UX redesign (#745)

Add an additional field for date of the event.
Set 'all day' event as a default option when you add a new event.
Change in the design of AllEventsWindow and EventDetailWindow according to UX redesign.

[EGD-3743] Update copyrights in fies

[EGD-3315]Review changes (minor)

[EGD-3469] Rework DB

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-3700] Switch window rework

-Create application->switchManyWindowsBack() method
-Create equivalent to empty window enum class
-Remove stored prevWindows variables
-Add bottom bar to empty window (equivalent to allEvents)
-Repair going back to previous windows functionality
-Repair switching window (with empty events DB)
-Add EventShift value to event records time

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

[EGD-3699] Add notifications handling in calendar.

[EGD-3469] PR changes

[EGD-3486] Implementation of SMS handling in service-desktop

added message removal method

added message marking as read/unread

added message thread to_json() method, fixed unit test

added template processing except search

added SMS gathering by contactID

added getByText sms query

added template search query

[EGD-3470] Review changes

[EGD-3470] Date conversion to string and rework month view model

[EGD-3470] rework month model class, add date.h lib, Develop calendar month view model

[EGD-3307] Review changes