Fix: DOMAIN from PCClass/PCClassLevel can be ignored under certain conditions & handle remove poorly

Issue#: CODE-1989


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk/pcgen@19038 ef53c05b-3124-4d59-ae7d-fe3273f42be7
testing DOMAIN in Class/Class Level

Issue#: CODE-1943


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk/pcgen@19039 ef53c05b-3124-4d59-ae7d-fe3273f42be7