This is a personal library to provide some math routines for generative stuff.

WIP - Need to write unit tests ...

The forms with ! in the name mutate the first vector in the parameters.

Otherwise functions are non-mutating. Except for V3F.SETXYZ, V3F.SETX, V3F.SETY, V3F.SETZ which do mutate.

TODO https://libnoise.sourceforge.net/noisegen/index.html