Update GetVideoDeviceProperties to flatten hierarchical properties
Update GetVideoDeviceProperties to flatten hierarchical properties

stevenlovegrove/Pangolin,randi120/Pangolin,wxdzju/Pangolin,tschmidt23/Pangolin,tschmidt23/Pangolin,stevenlovegrove/Pangolin,stevenlovegrove/Pangolin,mp3guy/Pangolin,renzodenardi/Pangolin,mp3guy/Pangolin,wxdzju/Pangolin,randi120/Pangolin,tschmidt23/Pangolin,mp3guy/Pangolin,renzodenardi/Pangolin