[EGD-6883] Change time settings cleanup

Time related settings are handled by service time now.
utils DateAndTimeSettings replaced by static time service api.

[EGD-6951] Removed old header implementation

Removed old header implementation.

[EGD-6697] Date and time formatting

Added system locale dependant date and time formatting.

[EGD-6960] Header addition related style cleanups

Header addition related style cleanups.

[BH-374] Librarize application-antenna

Add apps-common, librarize application-antenna

[EGD-6918] Timestamp clean up

Removal of not needed methods
Addition of unit tests
Fixes according to newst design guidelines
Added new seprate interface cmake lib for time constants

Merge branch 'master' into stable

Merge branch 'master' into stable

[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

[EGD-6867] Renamed TopBar into StatusBar

Renamed TopBar into StatusBar.

Merge branch 'master' into stable

[EGD-6701] System time usage fixes

Fixed all calls to stdlib time.
Removed all redundant calls to Timestamp treated as time source.

[BH-361] Move date to separate directory

Move date to separate directory

[EGD-6338] Fix NAT widget visibility

Make sure that NAT (Network Access Technology) widget is visible on top
bar ONLY during call.

[EGD-6740] Availability and Change handled by PhoneLockHandler

Availability and Change in phoneLock handled by
PhoneLockHandler. Removed old implementation from
onBoarding and Settings. Cleared language assets.

[EGD-6453] Warning when adding incorrect event

When adding to Calendar an event which is incorrect  (e.g. has empty
title or end which is sooner than start) warning window appears.

[EGD-5884] Added Lock Screen popup handling

Moved lock screen window to popup. Split DesktopMainWindow into
two parts (popup and regular). Added LockPhoneHandler into
ApplicationManager.

[EGD-3119] Hide InputEvent's member fields

Use the InputEvent's convenience methods to express intent.

[EGD-6527] Internationalization API unification

Single api to rule i18n
all calls to localistaion in cpp files unified
cut off ass many dependencies in i18n header as possible

[EGD-6555] ListView constants move

ListView constants moved from style to ListView.hpp.