* Adding document describing how to use logger
* Adjusting logs to follow a new guide
* Change order in log header:
line number is now before function name
Fixed the problem that the call state polling
timer wasn't terminated in some cases, so the
modem command AT+CLCC had still been issued
until e.g. another call was made. In such cases,
this lead to inability for the modem to go to
a power-down state due to constant activity and
thus lead to battery power waste.
Additionally, fixed a hidden bug that TimerRing
hadn't got a virtual destructor.
Also thrown out some dead code.
Fixed no calllog entries in DND mode, which were caused
by not starting the call in DB interface, so no entry was created.
Moreover, small optimizing of the DND handling.
Call logic is now removed from call window and call app.
There was spaghetti logic mixed in window and app, now
call logic is based on notificatins from service cellular.
Moved call handling to separate library and removed CallManager
Apply suggestions from code review:
Co-authored-by: Bartosz Cichocki <sp2fet@gmail.com>
Co-authored-by: Mateusz Piesta <mateusz.piesta@mudita.com>
