Fixed Mouse, OBJ Imports

Finally got to fixing the mouse input that I have struggled with. OBJ
imports are now possible (at this point only one at a time). OBJ imports
can only be done with 3 things included: Vertices, Faces, and Normals.
If the OBJ does not have normals, it can be imported into Blender and
under export, you can choose "Export with Normals."