Add a function to cmake to add linphone variables for propagation

Workaround VP8 encoder reconfiguration not taking into account framerate changes. Fix video size adaptation not taking into account bitrate changes. A bit of cleanup in logs.

Simplified may to get archive name for macos liblinphone tester. We do not try anymore to deduce it, we get the most recent archive name in the build directory instead (fixes case when we are on a tag or on a fixed version)

On incoming call, do not start the ring tone if the call's state has been modified by listeners. Add onStartRingtone to decide when to start ring

Fix build and 64bits upgrading: -generate openldap dll without changing name. -Allow postinstall to build in specific architecture (32/64 bits)

transfer call to focus only if the focus call is in UpdatedByRemote or Connected or StreamsRunning state

Change getter name to is because csharp wrapper remove the 'get' token from function that make a conflict with an existing function.
Fix tester on cast.

Memory leak fix in bellesip
Update Docker Debian 10 to add libjsoncpp-dev

Fixed quote escape error in echo statement causing script to copy all the commits history of the parent branch instead of the history from the latest commit of the parent branch
Save disk space by deleting temp history directory after allure report generation instead of keeping it
Added error handling for deletion of temporary history directory, in case the history couldn't be gathered. Changed all reports URL to use https

remove NAMS from windows build (CI)

MagicSearch reworking for async processing
Windows : Support MSYS2

Fix tester on call quality

Fix random file for concurrency between suites on video tests

Change Docker image name:
	bc-dev-android:r20 -> bc-dev-android-r20:20210217_python3

(cherry picked from commit 22272cd7c60cf201ea58e6f4196e8df5c59eb4df)

Updated liblinphone to return at least once headset/headphones audio device if available in audioDevicesList

Fixed wrong directory when we are launching a different tester for the same commit-id
Fixed allure unique URL and alias for iOS tester

Set amplitude to 0 on dtmf generations. Stop file player to play a file when stopping tone is requested. Note that playfile has been call when incall.

Added debug output
Enabled allow-failure for report upload job since we now strictly check bash script errors

Fix cast as belle_sip_parameters_get_parameters returns a belle_sip_param_pair_t and not a const char* causing belle_sip_uri_equals_with_omission to return false negatives

Fix bug causing undesired transition from Paused to StreamsRunning state in case of incoming UPDATE request.