4D noises

[Misza13]

Could I please bother you to port also the 4D versions of the noises?
I was able to make a working hacky port by simply translating things like vec4 -> float4, fract -> frac etc. but it's far for the nicely refactored version that you have in your package. And such a refactoring is beyond my own shader coding skills, I'm afraid.

Here are the gists of my "ports", if that's of any use:
https://gist.github.com/Misza13/f91c619d4630c56ce2f844618e325913
https://gist.github.com/Misza13/11ed65b673aaecf8ab8e8ce003f3e3ae