Demo Game

I changed some of the code around and put all the main classes together
in a little demo brick break-ish game. I'm gonna use it to figure out
how to make the bricks drop fire tokens/icons/whatev. It should also be
usefull for when we're figuring out how to pass in txt files to edit the
map. Thought I'd post this so we can keep going back to it to test
things.