Enhancement option to increase number of Fur Shells

At higher render resolutions, the fur rendering method breaks down on the Werehog and you can see the individual shells pretty easily. This was a problem even on console, but the lower render resolution at least made it look decent most of the time.
Increasing the number of shells should help mitigate this if possible, although it would be a major performance hit so it should be an option like the enhanced motion blur.

I think it should be a slider, since different people will be rendering at different resolutions or maybe would want to have an absurd number of shells. There is a point of diminishing returns even at absurd render resolutions, because of the distance of each shell from the original mesh, so the max count shouldn't need to go higher then ~80?

From what I remember, it's just the Werehog and Chip who have shell fur. I believe the games default is around 11 shells for the Werehog? Chip is a smaller model and probably doesn't need to have this available.

No files or tests are named. Start by locating the Werehog and Chip shell-fur rendering path and the existing enhanced motion blur option; determine where a configurable shell-count slider belongs, then verify it changes the shell count while remaining optional.