Support for Windows x64 builds

Need to use CMake to compile and choose a x64 generator (Tested in VS2013 Win64).
* [How to use CMake](https://dl.dropboxusercontent.com/u/28887086/T3D%20CMake%20docs/mdwiki.html#!wiki/Use_CMake_project_generator.md)

The port are based on work:
* Yuri Dobronravin - http://www.garagegames.com/community/forums/viewthread/134868
* @signmotion - #559 
* @jamesu - #776