Eliminate MultSelect from PCG read/write (we do not support any CHOOSE tokens that use that form of storage anymore)
Also eliminates the usage of that data from BonusManager and otherwise useless methods from PlayerCharacter

Issue#: CODE-2466


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@23008 ef53c05b-3124-4d59-ae7d-fe3273f42be7