Started Marching Cubes algorithm.  Currently it takes in a list of all voxels, processes them into slices, then gets the index of each voxel from 2 slices at a time.

//TODO:
	Finish add to mesh,
	figure out how to properly use the index to determine which cube to use
	finish the textured versions of these methods
	comment code
Added ProcessIndex method skeleton, currently it is a big switch statement
Filling in stuff
Merge branch 'Assignment2.MarchingCubes.Hart' of github.com:mahart/Awe

Conflicts:
	Awe.sdf
	Editor/Utilities/MarchingCubes/MarchingCubesGenerator.cs