"Separate XYZ," & "Combine XYZ" Node for the compositor

A really cool feature in 3D compositing is being able to render out an object's UV coordinates and replace the texture in post. This is especially helpful when dealing with screen replacement as it makes it super easy to replace what's on the screen at a moments notice.

Problem is, if you import exported footage into Blender, the UV pass with be imported as RGB, meaning there's no way to use the "UV Map," node with imported footage. Having a Separate/Combine XYZ node would be great for being able to convert RGB back into XYZ