Add Build Tool

[palodequeso]

This tool should take a game directory, and a target platform, and build it out.

Platforms to support initially

• Generic Electron Folder
• Generic Cordova2D Folder

Platforms to support after that is done

• Linux (.deb, .rpm, .tar.gz)
• Mac (.dmg, .zip)
• Windows (.msi, .zip)
• Android (.apk)