Additional test (now supporting PCClass add/remove) for PCG round robin
	Also corrects a bug that existed in map comparison by specifically addressing IdentityHashMap
Issue#: CODE-1976


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk/pcgen@19006 ef53c05b-3124-4d59-ae7d-fe3273f42be7