Optimized code

In detail:
-added content to Var
-added namespace
-started to sort out old code (filtering out old, inefficient XNA
drawing code and keeping necessary values)
-enemies now have assigned classes
-inheritance now works top-down as it needs to in Unity (base classes
stripped of Monobehavior, children keeping Monobehavior so they keep
inherited values and maintain functionality within Unity)
-other stuff I may have neglected