VS project file updates and arrow key support

A couple of years ago I made some mods to 0.90.4 so I could play it on a laptop using the arrow keys. I thought those changes might be something of use for this project. While adding arrow key support isn't exactly forwarding the project closer to your goal of a C++ implementation, it does perhaps making it more obvious for new users.

I also fixed a few visual studio project file related issues.