[EGD-4739] Add empty APN settings window

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

[EGD-5086] Fix voice not starting when calling

Due to a race condition between source and sink voice is not always
starting when calling. Introduce audio stream connections to avoid
race condition and improve handling of audio start and stop operations.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[EGD-4711] Change calendar events endpoints

-Create providers object
-Change endpoints data message structure to json object
-Extend ical format validation
-Extend service desktop tests for calendar endpoints

[DW-31] Don't require commit subject to start with Add/Change/Fix

After the testing period we decided that the rule to start
a commit subject with Add/Change/Fix is overly restrictive.

[EGD-5183] Fix message options texts

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

[EGD-5186] Change minimum CPU frequency to 132 MHz

Temporary minimum CPU frequency limitation

[EGD-4835] Fix HIL Readme, code, so it works, rename, random GCC 10 fix

Polish README, so it works 1:1.
Rename method, so it blends better with its calls.
Delete old code, leave phone unlock.
Try not to see this random GCC 10 fix here.

[EGD-4846] Change default HIL to autodetect Pure phone

No need to pass --port argument by default.
--port still needs to be passed if you want to use specific
phone or Linux simulator

[EGD-4846] Add auto detect USB Pure Phones for HIL

Detect connected Pure phone automatically inside test harness (Python
library) by its Manufacturer and Product strings.

[EGD-5166] Add query-callback synchronization mechanism

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

[EGD-4968] Add Service GUI documentation

GUI service documentation added.

[EGD-5150] Fix Crash on enter Settings Information

Loading bootCfg casues stack overflow in Settings module
and crash of application.

[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-4887] Add PLL2 clock switching

Pll2 will be disabled at the lowest CPU frequency,
which will save power

[EGD-5140] Fix default borderCallback navigation in GridLayout

Fix default borderCallback navigation in GridLayout

[EGD-4317] Fix newly added contact recognized as a duplicate

of temporary contact. Newly added contact is no longer considered
as a duplicate of a temporary one.
It simply replaces the temporary contact, if its number matches.

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

Add VoLTE ON/OFF switch in Settings Network window

[EGD-4706] Change log for RT1051 and Linux platform

Unify log for RT1051 and linux platform.
Add Logger class where common functions
for RT1051 and Linux are stored.

[EGD-4712] Change quickstart.md to reflect current project state

Quickstart documentation was a bit out-of-date, thus containing some
minor inaccuracies. Also document didn't actually reflect desired
sequence of user actions.

[EGD-5086] Change audio device switching logic

Upon hardware change event, audio profile had been switched multiple
times forcing redundant initializations of all related objects. Logic
has been optimized and prepared for further refactor. Now upon hardware
event objects are initialized exactly once.