Polyamory Trait

This was born out of frustration of the all or nothing multi-relationship approach within ideology. I wanted some colonists to have a larger relationship circle and others not too, but that is easier said than done with ideology. So this is a trait that can spawn on pawns that allow them to hold multiple partners even if the ideology only allows one.

-The trait spawns in a free slot just like sexuality with a 5% chance by default. but there is a config to make it whatever you prefer.
-Pawns with this trait can still romance pawns without it, but if the pawn with it takes on another partner, the other will consider it cheating. Only pawns with the polyamorous trait do not consider it cheating