Added win32 project for samples/Cpp/SimpleGame

A win32 project for samples/Cpp/SimpleGame.

1. Copied the project from template/multi-platform-cpp/proj.win32 
2. Renamed the project files accordingly
3. Added GameOverScene.h and GameOverScene.cpp to SimpleGame.vcxproj and SimpleGame.vcxproj.filters
4. Replaced all relative ../../../xxx to ../../../../xxx

Tested on Windows 7 with Visual Studio Express 2012 for Windows Desktop.