[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5043] Add emergency call window

According to PurePhone design emergency call
window is needed after "SOS" callback at the screen lock.
This PR introduce implementation of emergency call window
and also refactor in the enter number window. Both windows
derives from new number window.

[EGD-5338] Add APN options window - gui

This is just GUI, window is not connected yet.
It will facilitate further development of APN settings,
and will be enhanced later.

[EGD-4740] Add New/Edit APN window - Part1

Add New/Edit APN window - basic window/ model/ widget

[EGD-5250] Change time format on home screen and status bar

This commit changes time format displayed on home screen 
and on status bar by adding new locale for 12H format, 
which excludes am/pm suffix.
The new locale is set as new default format for time string.

Minor: Grammar typo fixed.

[EGD-5288] Add Main system window

In settings add “System” window with all main menu items
(items are just menu positions not connected to actual windows)

[EDG-4743] Add new/options windows to quotes

Add windows for add/edit/delete quotes, use ListView for quote display.

[EGD-4995] Add changing passcode windows flow

Implement changing passcode windows flow

[EGD-5087] Update Options and replace PageLayout with ListView

PageLayout removed and replaced with ListView.
Options structure and namespace cleanup.
Added ListView ScrollBar type and disable on
construction.

Merge branch 'master' into stable

[EGD-2501] Add gsm powerdown due to battery

Gsm model power state maintenance based on battery level.

[EGD-4739] Add empty APN settings window

APN settings window without APN list.
Icon widget now accepts rich text.

[EGD-5183] Fix message options texts

Fix text for deleting conversation, adding contact and deleting message.

[EGD-4591] Change input language parser to load from files

Completely independent input language files and display language files.
Input language files are now loaded based on number of files in
"profiles" folder.
InputLanguageSettings window now shows input languages based on their
"filetype" value andfiles in "profiles" folder.

[EGD-4737] Add VoLTE ON/OFF switch in Settings Network window

Add VoLTE ON/OFF switch in Settings Network window

[EGD-4590] Change KBD parser to JSON for input keyboard files

Changed keyboard input language parser to parse JSON files.
Removed all KPROF files and added JSON.
Added unit tests for new parser.
Modified document about adding languages.