Generates data sources based off URIs of the form: vap+dfc:LOCATION
Break a catalog URI down into parts Federated Catalog Paths are very different from many Autoplot URIs, provide parsing for these.
We have to reject the URI in order to pop up the inspection dialog box. This makes sense because if the URI is good, folks just want to see the data.
This data source is pretty much only discovery, so of course we return true here.