Morale trap framework, and HONKING ZOMBIE CLOWNS.

Creates a basic framework for a morale changing "trap" that triggers and deletes itself upon being noticed.
Now we can make "scenes" that affect a character's current state of mind, to some degree. Can obviously be worked on and expanded later, but it's still an addition that opens up some nice possibilities.


aaalso:
Zombie clowns that HONK which causes panic in character with the Coulrophobia (Fear of Clowns) trait, in the sense of the jittery disease for a few turns, and morale dropping, and a bonus for wearing extremely clunky clown clothing as well (Because humor). Expect a Circus .json map from me before too long.
ProClown should probably have some reaction too.

(Assigning the Shakes seems overkill here.)