Give every Quaternius head a visible mouth and queue the prop and gear fit pass

CHANGELOG.md

@@ -11,6 +11,8 @@ Semantic Versioning.
 - Removed every hat and hood from the NPC roster: the firefighter helmet is the only head gear
   left, so no character hides its face behind a cap. The street performer no longer wears the
   cone hat and carries the baton and board in the hands instead.
+- Every NPC now has a visible mouth; the Quaternius heads shipped without one, so the faces read as
+  brow-and-eye masks.
 - Fixed the modular Worker characters: the guard, delivery, firefighter and crowd roles had holes
   in the torso and an open crown, a continuous unibrow and no visible eyes. They now have a closed
   torso, hair, two eyebrows and two eyes.