Option to preserve neutrals at mid-gray and exposure.

### Feature Request Would be nice to have some option that locked in the possibility of preserving (as much as possible) mid-point exposure and neutrals in look dev inside Color IO. Would also make it easier to evaluate the impact of looks on an image. Sometimes the jumps in exposure and or contrast makes it harder to gaiuge the character of a look in a given scene. ### Use Case I think the best way to see what I mean is to watch this fragment of Cullen Kelly's video https://www.youtube.com/live/GVVrmnRNveo?si=cqqa9KMbf7Zvynmg&t=791