Add Game project to solution and first tutorial source files. Add vc9 solution for glew. Adjusted some git ignore files.
Game project should be the StartUp project
Add batch file to build dependencies
Use DXSDK_DIR env var in include and lib search paths instead of relying on user Options
Also use DXSDK_DIR env var when building SDL. Only build SDL2 and SDL2main projects for SDL solution.
Fix FreeImage not building in Release
Speed up build times by enabling Build with Multiple Processes (/MP)