iwd2: renamed SetRaceResistances for clarity
Spellbook::LearnSpell: try to fully support iwd2

racial innate/clab granting in cg now works
iwd2::cg: reduce feat multiplicity problem a bit

creating a cleric gives you over 200 turn undead innates :]
Actor::SetFeatValue: optionally skip feat reapplication
GemRB_SetFeat: don't reapply feats all the time, we're in cg!

fixes silly known/memorization count of feat spells