dunno
Merge branch 'issues'

Conflicts:
	test/data/subparts/SpecifiedSubscars_Expected.sbol.xml
some example rigging for testing
repeated DCs are now omitted - deepparts excluded

Most Parts are described by their SubScars therefore
Deeppart and specifiedpart test are omitted

deepparts could be added back later, but it may be not worth it, if I
recreate SBOL files from queries later...
Deeparts are one layer, the bottom, we could go multiple hierarchical
levels down.