centralize vertex definitions

[mtrofin]

instead of having 2 copies of the vertex definitions for teapots (one in the .inl file under common, and one in apple-to-apple.js), could we have a file in common with the list of values? Then, the native side could #include that file, and the javascript side could be either generated using the C-preprocessor, or you could load and parse the list at the web app startup time, and form the vertex arrays that way.