Class Hierarchy

I've created a class hierarchy view of Quartz Composer. This can be handy for developers wishing to implement their own custom patches.

I've tried to remove most of the extraneous stuff, like all the actual patches, but it might have some stale stuff in there still. I also removed a few obscure classes with obvious inheritance from an NS class, to keep the image from being even more impossibly wide.

Have a lot of fun!