Ability to limit slicer to set list of materials and corresponding colors#521

a way to limit what m aterialks and colors a user can slice with in the inbuilt slicer.

• ensures that only materials and colors of said materials that are kept in stock can be sliced for, optimising workflow and minimising knock on issues caused by slicing outside of ‘allowed limits’

• reduces visual clutter when slicing, as not showing a whole list of things that in theory are never selected or used.

Jup as well the option to just have one collor per plate

Would also be nice to see the actual color names when hovering over? eg differentiate between two reds, or see that petg translucent clear is actually the white color on the selection etc.