Add BurtlePRNG

[jlgrall]

Your comparison is very interesting. I would be interested if you could add BurtlePRNG, which seems very fast.

Project: https://github.com/graue/burtleprng
Node.js: https://www.npmjs.org/package/burtleprng

[nquinlan]

Thanks. Unfortunately, I cannot claim authorship. I only mirrored Johannes Baagøe's work.

I'm not quite sure how to go about adding things to the article, as its not my work and I do not want to take away from original authorship.

Perhaps leaving issues like this one open and expanding on them might be enough. That said it might also be worth putting additions to the original article or perhaps adding another file called addendums.md (or something) may be the solution.

I'll think on it, but please let me know if you have any thoughts one way or the other.