[Suggestion?] Add a way to config sanity increase from held or equipped (curios) items

[TheZenithTree]

I'm trying to make it so sanity increases as if you're holding a light source (or have one equipped) for compatibility with dynamic lights mods. As it stands, client-side light doesn't affect sanity (which is good), but a workaround could be that it checks for if a torch/lantern/etc. is held? Is there already a way to do this?