Create hasAbilityKeyed(Category, String) in PlayerCharacter, and use when appropriate
(this is faster, and safe since a boolean cannot remove information, yet getAbilityKeyed can be ambiguous if the Ability is possessed wtih more than one nature)
Issue#: CODE-1921


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@22784 ef53c05b-3124-4d59-ae7d-fe3273f42be7