Add pygraphviz packages (not really needed) and the image-trove config and binary.
Add pygraphviz packages (not really needed) and the image-trove config and binary.

NIF-au/imagetrove,NIF-au/imagetrove,NIF-au/imagetrove,carlohamalainen/imagetrove,carlohamalainen/imagetrove,carlohamalainen/imagetrove,NIF-au/imagetrove,NIF-au/imagetrove,carlohamalainen/imagetrove