Added Support For Visual Studio

I added the Visual Studio files, added the shader headers, modified the files to work with Visual Studio (some paths were changed for header files, like #include\<tiffio.h\> was changed to #include\<TIFF/tiffio.h\> since that is where it is on my system. I'm thinking it might be better to just change where it is located on my system so I don't have to make those changes since that will prevent it from running on your system), and had .gitignore ignore the Visual Studio output that is generated on build.