utilities to load all the merged point clouds from sweeps saved in some particular folder, and to load all the merged clouds for all the sweeps taken at some waypoint
Added a vector of xml nodes that are to be parsed - this allows to load only particular fields (and thus point clouds or images) for sweeps. The fields covered are RoomCompleteCloud, RoomIntermediateCloud and IntermediatePosition
Added / at the end of the folder path (more robust this way)