Create binarySTL-LoaderSource.js

Contains a binary STL loader on line 234. Somebody more capable might be able to trim this down to just the binary STL loader portion so we can add it to the [three.js loaders](https://github.com/mrdoob/three.js/blob/master/examples/js/loaders/STLLoader.js). This code actually contains three different loaders: ascii STL, binary STL, and OBJ.