WIP | A simple example with litescene.js

[kalwalt]

litescene.js is the the javascript WebGL 3D Engine library used by WebGLstudio. With this example we want to test ArtoolkitX.js and litescene.js, and in a near future develop a wrapper like artooolkit.litescene.js. I will open an issue and a project for this topic.
The example is in part taken from the litescene.js repository, and adapted to ArtoolkitX.js.

Things to do:

• to verify that APP should be inside the head of the html doc
• to fix the code (actually not sure if it works)
• transformationMatrix and camMatrix should be updated in onupdate?