Switch to storing point cloud from MLS step

applications/reconstruct/include/ftl/depth_camera.hpp

applications/reconstruct/src/depth_camera.cpp

applications/reconstruct/src/depth_camera.cu

applications/reconstruct/src/depth_camera_cuda.hpp

applications/reconstruct/src/dibr.cu

applications/reconstruct/src/integrators.cu

applications/reconstruct/src/scene_rep_hash_sdf.cu

applications/reconstruct/src/voxel_scene.cpp