Add a method to compute the per-vertex normals of the scene points
Implement computing vertex normals
Prevent revisiting a triangle or vertex during normal computation

Also some code cleanup.
Add output to normal computation routine
Use scene point normals instead of photometric normals
Fix an index out of bounds error
Add more specific output
Accelerate creating adjacency lists
Fix modifying triangle fan while iterating over it

This was forcing one fan expansion iteration to visit all triangles
in the mesh.
Check for visited vertices during fan expansion

This doesn't increase the algorithm's speed as much as I had hoped it
would.
Replace my implementation with the old sceneTriangulation implementation

After fixing all the semantic issues with copying code from one file
to another, I found that this method performs much better than my
own implementation. I still don't know what was wrong with mine, but
since this one runs faster it makes more sense to use it.