Reorganise rgbd files

applications/reconstruct/src/main.cpp

components/common/cpp/src/configuration.cpp

components/rgbd-sources/CMakeLists.txt

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

components/rgbd-sources/src/source.cpp

components/rgbd-sources/src/sources/ftlfile/file_source.cpp

components/rgbd-sources/src/sources/ftlfile/file_source.hpp

components/rgbd-sources/src/sources/ftlfile/player.cpp

components/rgbd-sources/src/sources/ftlfile/player.hpp

components/rgbd-sources/src/sources/image/image.hpp

...rgbd-sources/src/sources/middlebury/middlebury_source.cpp

...rgbd-sources/src/sources/middlebury/middlebury_source.hpp

components/rgbd-sources/src/sources/net/net.cpp

components/rgbd-sources/src/sources/net/net.hpp

...s/rgbd-sources/src/sources/realsense/realsense_source.cpp

...s/rgbd-sources/src/sources/realsense/realsense_source.hpp

components/rgbd-sources/src/sources/snapshot/snapshot.cpp

...nts/rgbd-sources/src/sources/snapshot/snapshot_source.cpp

...nts/rgbd-sources/src/sources/snapshot/snapshot_source.hpp

...onents/rgbd-sources/src/sources/stereovideo/calibrate.cpp