Add check if groups are unique in the database
Add check if groups are unique in the database

Coded another check in checkWellFormed to see if each node is unique inside
of a family.

enochd/RMG-Py,pierrelb/RMG-Py,chatelak/RMG-Py,KEHANG/RMG-Py,faribas/RMG-Py,nickvandewiele/RMG-Py,chatelak/RMG-Py,comocheng/RMG-Py,nyee/RMG-Py,nickvandewiele/RMG-Py,pierrelb/RMG-Py,faribas/RMG-Py,nyee/RMG-Py,KEHANG/RMG-Py,comocheng/RMG-Py,enochd/RMG-Py