Add resonant powers to Ioun stones and Wayfinders can contain Ioun stones

Note that Iouns stone(s) contained in a Wayfinder do not provide their
benefit to the PC.
Add missing ASPECT to "Glory of Old" ability
Merge pull request #47 from mjmeans/pfs

Add resonant powers eqmods to Ioun stones, fix Wayfinders Ioun container count