[EGD-6111] Timers refactored

Deep refactor of system timers.

[EGD-6009] Test and repair Update process

Fixes to improve Update process.

[EGD-5449] Add final prompts windows

Added Dialog windows for "configuration successful"
"no configuration" and "update OS" for Onboarding.
Refactor Dialog window implementation and usage of
DialogMetadata in other applications.

[EGD-5624] Added window update

This PR introduces mechanism for passing
data to the currently displayed window by
switch data.

[EGD-5902] Phone Modes Windows

Windows for phone modes created.
Offline:FightMode/messages only ServiceCellularApi created.
ConnectionFrequency and DND options settings throught AppSettings.

[EGD-5969] Add battery charging UI

Battery charging UI modified
according to design

[EGD-6043] Change status bar layout

Status bar is rewritten to use box layout

[EGD-6014] Fix top bar includes

This is only clean up of includes, no functional changes

[EGD-5883] Added generic button popups attach to applications

Created structure and implementation for popup windows
attachments on button actions into applications. Moved Volume
window to fit into solution. BarGraph refactored.

[EGD-5832] Status bar widgets refactor

Status bar SIM widget refactor
Status bar time widget recfactor
Status bar lock widget refactor
Separation of status bar time widget and desktop main window time widget
Fixed issue with wrong calculation of timezone based time

[EGD-5059] Fix SMS thread UX issues

This PR correct following global UX issues that were noticed in SMS
threads:
- invalid Nav-bar margins (30px instead of 20px)
- invalid NAv-bar hight (54px instead of 50 px)
This PR corrects following SMS threads UX issues:
- invalid inputText's left margin (10px instead of 0px)

[EGD-5489] Add Bluetooth pairing test

This PR provides a harness test of a current stage `Bluetooth` pairing
functionality. That is provided a `Bluetooth` device name, test logic:
* navigates to a appropriate window
* scans for devices available
* navigates over appropriate device and check's if it is focused

[EGD-5756] Add Update Window

Create Update Window(s) to control and visualize the MuditaOS update
process on Pure.

[EGD-5863] Add retry dialog window

Add generic retry dialog window

[EGD-5737] Merge master into experimental

Synchronize with master before merging

[EGD-5312] Add Time selection window

- add ChangeDateAndTimeWindow,
- extract EventTimeItem to common widgets folder
  and rename it to TimeWidget,
- extract EventDateItem to common widgets folder
  and rename it to DateWidget,
- replace timeWidget with common TimeWidget
  in NightshiftWindow,
- refactor time setting in
  DesktopMainWindow and TopBar,
- Remove dead code from EventManager
  (GetNextAlarmTimestamp and HandleAlarmTrigger)

[EGD-5821] Add Network Access Technology widget

Created Network Access Technology widget.

[EGD-5448] Add EULA window

Added EULA window required for onBoarding procedure.
Onboarding settings added.

[EGD-5805] Fix not charging icon

Fix icons behavior in topbar.
When plugged and no charging
regular dischrging icon is
displayed.

[EGD-5674] Set battery and GSM signal strength indicators as text

Temporary set battery and GSM signal strength indicators as text.
This is for test purposes only