[SetParameters] Rename `SetParameters` to `TypeParameterAccessors`

[mtfishman]

Rename SetParameters to TypeParameterAccessors, following the name change of Setfield.jl to Accessors.jl (https://github.com/jw3126/Setfield.jl?tab=readme-ov-file#lifecycle).

I was considering ParameterAccessors as an alternative, but I think TypeParameterAccessors is better because the term "parameter" can be used for many things so we should make it clear it is referring to accessing and modifying type parameters. Another option could be TypeAccessors, only because it is shorter, but I also don't think it is clear what that means from the name alone.

@kmp5VT @emstoudenmire

[emstoudenmire]

Better to have a descriptive name, I agree. You could go with TypeParamAccessors or TypeParamAccess if you want to shave off a few letters.

[mtfishman]

I prefer the non-shorthand version here (I generally have leaned towards not using shorthands unless there is a very compelling reason to use a shorthand, like the shorthand is very standard or really improves an interface).