Convert Global AUTO:FEAT from ChooseResultActor to ChooseSelectionActor
(adds type safety)
Note: CHOOSE:FEATSELECTION/CHOOSE:ABILITYSELECTION had been returning CategorizedAbilitySelection (which included Category and Nature).  This has been reduced to only the information actually performed in the Choose, so only the Ability and Selection.  Category and Nature are now [appropriately] owned by the token that reacts to the %LIST.


Issue#: CODE-1902


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@22822 ef53c05b-3124-4d59-ae7d-fe3273f42be7