Implements #330 audio compression with opus

CMakeLists.txt

applications/gui/src/src_window.cpp

applications/vision/src/main.cpp

components/audio/CMakeLists.txt

components/audio/include/ftl/audio/buffer.hpp

components/audio/include/ftl/audio/decoder.hpp

components/audio/include/ftl/audio/encoder.hpp

components/audio/include/ftl/audio/software_decoder.hpp

components/audio/include/ftl/audio/software_encoder.hpp

components/audio/include/ftl/audio/source.hpp

components/audio/src/software_decoder.cpp

components/audio/src/software_encoder.cpp

components/audio/src/source.cpp

components/audio/src/speaker.cpp

components/codecs/include/ftl/codecs/codecs.hpp

components/common/cpp/include/ftl/config.h.in

components/streams/include/ftl/streams/receiver.hpp

components/streams/include/ftl/streams/sender.hpp

components/streams/src/receiver.cpp

components/streams/src/sender.cpp