tjproct

This circumvents a bug, currently in develop, whereby `availability` dicts aren't propagated to a QubitProcessorSpecs's QubitGraph. Although this won't need to change if that bug is fixed, this is probably...

On develop (and probably master), when a QubitProcessorSpec is created with `availability` specified rather than `geometry`, the QubitGraph stored doesn't contain the connectivity information -- it's an empty graph. pspec...