Maximum texture resolution setting override in Simplify panel

Hi! I find myself to often hit memory troubles in huge scenes, and the texture resolution limit in the simplify panel is a nice thing, but I believe with a couple of tweaks would be much more powerful. While most textures are ok to be limited at 2k, what is almost never looking good at that resolution is a background texture. For this reason it would be nice to have the ability to exclude the textures used in the world from the resolution limit.

Moreover, it'd be great to have a per texture exclusion option from the simplify. I don't know much about developing, but I split the proposal in two parts based on what I thought would be the easier to implement.

So here's my proposal:

1- Add an option in the simplify panel to exclude all the textures used in the world.

2- This might be a bit trickier, but I think the ideal solution would be to have a little tick box on the textures nodes to exclude a specific texture from the simplify resolution limit