Enhancement: make Clustered light inspector being capable of modify  env_projectedtexture values

### What would this enhancement be for?

Rendering

### Describe your enhancement suggestion in more detail

since env_projectedtexture as been the clustered render, it's should be compatible with env_projectedtexture,
Clustered light inspector should be able to modify, add etc light cookie on light_rt and env_projectedtexture