Rollback to avoid an issue that seemed to randomly yeet passions from some pawns.

Seems to have been some innovent looking "SkillRecord.GetLevel", that probably made some cache randomly go nuts.

Various improvements to the options for how to generate pawnkinds, limit/disable skills, etc.

Tweaks

Fixed an issue (similar to the previous hotfix) with a lack of nullchecks for apparel restrictions without any tags.

Fixed accidental lack of `!` inverting the apparel restriction.

Added some defensive coding for apparel restrictions. + some more race trait support stuff.

Fixed the race-view centaur trait-icon being named "Centaur" instead of "centaur", causing Rimworld not to find it.

Undead Affinity now makes shamblers in melee often hit weaker and sometimes switch side..

Lets a parasite learn skills from the pawn they are parasiting.

Affected by learning factor.
The bigger the difference in skill level the greater the learning speed. Cannot go above the skill level of the parasiting pawn this way.

This feature has also been added to the Pilot Assisted Gene/Hediff.

Buffed parasiting gene, a bit. Less hungry when piloting etc. And made parasite-colonists not pop out if the pawn gets incapacitated for awhile. Mostly to avoid having surgery and such mess with people's plans.

Got rid of some test code