[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

[EGD-5778] Add signal strength dBM inidcator

Refactored signal strength logic and arranged it
as seprated widget.
Added option to display signal strength as dBM or
bar graph.

[EGD-5777] Refactored status bar battery indicator

Added an option to display a battery level in percentage

[EGD-5774] Fixed text char removal crash

Fixed text char and blocks removal handling and added
tests covering crashes.

[EGD-3756] Created generic ListItemWithCallbacks

Added generic template for ListItemWithCallbacks.
Replaced onDimensionsChange with callbacks.

[EGD-4797] Battery bar as widget

Battery bar now is present as
a separate widget in top bar.
Additionally refactored passing
battery status.

[EGD-5597] Fix messages overflowing length

Current sms length is bound by 7*67 characters. This PR
enforce that limit on ApplicationMessages level.
Additionally PR solve:
 - corner case problem with invalid cursor position in TextBackup
 - EGD-4408 fix of label on desktop menuWindow

[EGD-3633] Fix new message recipient

Known issues with recipient filed fixed:
- on contact, clearing there was leftover data
- on contact, one could keep adding numbers to visible name
- on contact, to delete it one had to delete each visible name char
- `select` in center button was not restored in some edge cases
- wrong recipient label

[EGD-5295] Fixes in Calllog app

Fixed some Calllog UI issues:
Fixed lack of calllog entry after call aborting

[EGD-5398] Added onBoarding application first version

Created first version of onBoarding application. Added welcome
window, configuration start window and adopted language
window. Small Icon GUI refactor. AppManager language copy removed.

[EGD-5684] Add RichText empty line support

Added RichText option to add empty line. Tests added. Fixed
scroll up navigation line first char calculation.

[EGD-5619] Add unified implementation of active icons

This PR provides unified and reusable implementation of active
icons used in windows system-wide.

[EGD-5637] Add RichText returning unhandled nullptr

Added check for unhandled nullptr that causes crashes.

[EGD-5333] Change renderer to follow command design pattern

Changes draw command implementation to properly follow
command design pattern. All drawing commands have been
moved to separate inheriting draw commands from renderer.

Other changes:
- New draw methods overloads have been added to pixel renderer.
 Now pixel rendering methods are in one class.
- Simplified draw commands naming.
- Changed variable naming in draw commands to be more verbose.
- Changed {x,y} pairs to Points where possible.

[EGD-5523] ListView OnPageElement and Options refresh

Added new OnPageElement listView rebuild type. Created new
options refresh. Refactored DisplayLight Setting. BarGraph rector.
Added step render limit for small radius arcs.

[EGD-5176] Documentation update for gui item and gridlayout

Documentation update for gui item and gridlayout

[EGD-3434] ListView Scroll bar refactor

Added two new scroll bar types. Fixed for ListView
with equal height elements and PreRendered which
require whole list render - not recommended for big
lists but works with not equal heights elements.
Applied new types to all lists in Pure. Various
cleanups and refactors inside models and listView.

[EGD-5383] Fixed Sim indicator displaying on top bar

Sim indicator should be displayed on desktop main window's top bar.