New Set of Integration tests around save/restore of a Player Character.
Has two small side effects in the core:
(1) A fix to prevent double-loading of the internal *LANGBONUS ability
(2) Changes visibility of PCGVer2Creator

Issue#: CODE-1976


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk/pcgen@18977 ef53c05b-3124-4d59-ae7d-fe3273f42be7