Source engine texture passing

[yogwoggf]

We need to be able to pass our G-buffer textures to the Source engine without any issues. Ideally, it should be like a normal ITexture. We primarily need it for sampling from the DX11-computed buffers in DX9.

Scope

gelly-binary-module

Acceptance Criteria

• [ ] I can receive an ITexture from the binary module which is showing the correct computed texture from D3D11.
• [ ] It doesn't crash or do anything to the D3D11 texture when I stop using the texture (like a garbage collection cycle)

[yogwoggf]

Done.