CShading_SourceColor render element with exclude reflection option

Hello,

Currently, we have no option similar to VRayDiffuseFilter, where we can directly see only the source textures and colors. The CShading_SourceColor adds reflections on top, which makes some use cases, such as enhancing in post or debugging albedos, impossible with this render element.

It would be really good to have this feature.

System report number: (Report ID=CRMAX-865)
original thread: https://forum.corona-renderer.com/index.php?topic=33933.0