Added HLSL files Pixel and Vertex Shader, along with some changes in D3DApp.cpp to set up for compiling the shaders. Some errors came up that I have noticed and need to resolve. Documented in Code under TODO
Fixed error from last upload, added in HLSL files, incomplete, but first need to resolve some TODO errors before adding more to the shaders.
Cleared cache, hope to make .gitignore work properly with updated files this time.
Fixed TODO errors and set VertexShader and PixelShader into scene.