Some cleanup, removing unused usings, renamed a cs file to match new class name.
<Compile Include="Model.cs" />
<Compile Include="Renderer.cs" />
<Compile Include="Transform.cs" />
- <Compile Include="Util.cs" />
+ <Compile Include="NativeLib.cs" />
<Compile Include="Material.cs" />
<Compile Include="Mesh.cs" />
<Compile Include="Shader.cs" />
