Tile collisions in all levels

This adds collisions to every level. There are a couple issues that I've noticed along with everything @edisonout mentioned whenever I go onto a platform that isn't at 45degrees (except in the town, I'm not sure why) I get a collision blue screen.  Also there are many places where the original platform was not 1 block wide, maybe 1.5 for example.  This leads to the player hanging in space after the, branch for example, has ended.  Pretty much every forest level and all of Greendale are effected.