Removed Pro

Didn't need the pro folders bloating the filesize.
iTween Visual Editor

Went ahead and tacked in the iTween Visual Editor:
https://www.assetstore.unity3d.com/#/content/180
https://github.com/dkoontz/iTween-Visual-Editor
Added Documents

Created the first documents (blank right now). Also updated the
readme.md to point new viewers in the right folder.
Updated GDD and About

Added a bunch of framework to the GDD and a tiny blurp to the About_ATE