Finished UML diagram. Added classes to project.

I finished the UML diagram for my GameFrame framework. I've also
defined all the classes in my UML diagram along with their instance
variables and (for now) empty methods. Next step will be to add
comments detailing each class, variable, and method.

Note:  All code in the gameframe package is code I wrote for my
project, the rest is code for the JGame engine that I'm using.