audiolayer: use Speex AEC

CMakeLists.txt

compat/msvc/package.json

contrib/src/speexdsp/package.json

contrib/src/speexdsp/speexdsp_vs_proj.patch

src/client/videomanager.cpp

src/dring/videomanager_interface.h

src/media/audio/alsa/alsalayer.cpp

src/media/audio/alsa/alsalayer.h

src/media/audio/audio_frame_resizer.cpp

src/media/audio/audio_input.cpp

src/media/audio/audio_receive_thread.cpp

src/media/audio/audiolayer.cpp

src/media/audio/audiolayer.h

src/media/audio/coreaudio/ios/corelayer.h

src/media/audio/coreaudio/ios/corelayer.mm

src/media/audio/coreaudio/osx/corelayer.cpp

src/media/audio/coreaudio/osx/corelayer.h

src/media/audio/jack/jacklayer.cpp

src/media/audio/jack/jacklayer.h

src/media/audio/opensl/audio_player.cpp