Renamed camthing to vimjay, also key input is working (forgot about spinOnce in C++), nothing on output yet, need a simple image source graph to really test it (graph input can be provided via param now, rosparam later)
Loading graph from disk, but the old ones have errors- need to remake those.  Also get rid of all relative paths and replace them with rosparams that can take find package_names into them.