heckj/squirrel3

A Swift implementation of the Squirrel3 hash function and pseudo-random number generator as invented by [Squirrel Eiserloh](http://www.eiserloh.net/bio/), described in detail at the 2017 GDC Math for Game Programmers talk [Noise-Based RNG](https://www.youtube.com/watch?v=LWFzPP8Z