Implements #168 keeping decoding on GPU

applications/gui/src/camera.cpp

applications/player/src/main.cpp

applications/reconstruct/src/ilw/ilw.cpp

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

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

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

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

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

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

components/codecs/src/encoder.cpp

components/codecs/src/nvpipe_decoder.cpp

components/codecs/src/nvpipe_encoder.cpp

components/codecs/src/opencv_decoder.cpp

components/codecs/src/opencv_encoder.cpp

components/codecs/test/nvpipe_codec_unit.cpp

components/codecs/test/opencv_codec_unit.cpp

components/renderers/cpp/src/tri_render.cpp

components/rgbd-sources/include/ftl/rgbd/detail/netframe.hpp

components/rgbd-sources/include/ftl/rgbd/detail/source.hpp

components/rgbd-sources/include/ftl/rgbd/frame.hpp