HSLuv for Cycling '74 Max

Currently only usable from javascript. Planning on creating some abstractions to make it usable in Max patchers as well.

http://www.hsluv.org/

https://docs.cycling74.com/max7/vignettes/jsrequire

var hsluv = require("hsluv");

var rgb = hsluv.hsluvToRgb([120, 60, 50]);