Block Dodge progress 12/14

Two steps forward, one step back it seems. I got the left and right clipping working, and got animations clipping as well. But page flipping seems to mess things up. I can page flip fine in my cliptest, but animtest the timer seems messed up.

I decided to use blitimg as the way to get unclipped and simple graphics onto the display. I also decided to start using the stack to pass params around for a few of my lib calls.

I think I should try a prototype game to see if it is in fact viable to play Block Dodge in pmode1. If not I'll have to make another game, probably a card game.