Better selected node/edge/pattern info tables

[fedarko]

It would be nice to swap the "Selected Node Information", etc. tables to use something like DataTables. It's not very high priority, but the advantage of this is that it comes with lots of immediately useful functionality -- the first that comes to mind is sorting by certain fields, for example sorting contigs by their lengths or coverages, edges by their multiplicity or by their source, etc.

Not sure how difficult it'll be to make the switch. Since the current ad hoc tables already work at least, this is low priority.