Questions now display in-game

Level now imports questions and doles them out to HuntObjects which now
have question variables. When the HuntObjects get picked up the display
their questions. TextDisplayer knows when a multiple choice question is
being displayed. It also probably knows when you're hover over/clicking
on one and whether you got it right or wrong. It just doesn't do
anything with that.
Made TextDisplayer display more because the multiple choice was 6 lines:
Event, question, and responses.