Audio : avoid returning audio card if null is set. Fix getting capture card on setting input and not playback. Allow setting NULL device (case of no cards available). Fix tests to not take account of system audio cards (maybe need to be done directly on core creation) Fix UWP tester in case of xml wasn't needed.
* Stop audio stream when setting new device and Filter don't implement MS_AUDIO_CAPTURE_SET_INTERNAL_ID and MS_AUDIO_PLAYBACK_SET_INTERNAL_ID. This fix allow changing device on Desktop while ringback.
* Add Audio stream stop count for tests.
* Change audio_stream_set_<input/output>_ms_snd_card prototype to know if MS_AUDIO_CAPTURE_SET_INTERNAL_ID/MS_AUDIO_PLAYBACK_SET_INTERNAL_ID have been called in filters.
* Add debug feedback when setting card.

Install docs only if requested (This is a workaround to having a path with too many characters on Windows where it is not needed to have docs).
Export 2 liblinphone_tester functions to allow UWP to use them for fixing dns resolver. Fix dns resolver on UWP tester that didn't point to the right IP.
Wasapi : Add default card only if it exists.

- Fix crash on exiting OpenGL while the mode wasn't set adn clean created window if using MS_FILTER_VIDEO_NONE after MS_FILTER_VIDEO_AUTO

- Fix auto shutdown server, xml and log files

- Auto end tester server when there are no more processes
- Stop UWP tester when there are no arguments
- Fix CI results file name

- ortp : Windows Fix : join multicast group by binding on wild card interface first (if error)
- reduce jobs when testing UWP
- Set MTU receive buffer to 4000 when using L16 - On tester keep an instance of LinphoneCall while doing test on it - UWP Tetser : Fix log file on childs
- MSMediaFoundation : Closong buffer when done, don't use a frame where the buffer size mismatch with the frame size. Add more exception managment

- Remove stuck folders (generated protected AppPackages)

- CI : remove binaries before building
- Revert absolute path on writable folder as it should be passed in tester parameters (xml/log)
- Windows tester : Propagate xml and log file to childs
-...

Fixed sanitizer build and launch for Android and Linux, by forcing sanitizer flags in CMake cache, and by passing the -llog linker flags to the compiler (see related commit in cmake-builder)

Now add the android xml test report as an artifact to get downloaded and eventually pushed with a test report upload job

Added test report upload job for iOS. Now we can overwrite the name pattern of xml files in jobs (needed for tests reports for iOS, named TEST* instead of BCUnit*)

reduced sdk version and min  sdk version for android tester, by partially reverting 674167c7

enabled unit tests for the CHECKED RIGHT job to avoid link error at runtime, and commenting useless builds in ci files