ensure all contributors are listed in the authors file

[ergo]

Hi guys, I'm cleaning things and adding some missing stuff into the repo (and others), like... full bsd license text ;)
I'm listing you here to ensure we have every author of ziggurat contributions signing the authors file.
Please add date to your names, thanks!

@virhilo (done)
https://github.com/ergo/ziggurat_foundations/commits?author=virhilo

@crooksey (done)
https://github.com/ergo/ziggurat_foundations/commits?author=crooksey

@uralbash (done)
https://github.com/ergo/ziggurat_foundations/commits?author=uralbash

@marcinkuzminski (done)
https://github.com/ergo/ziggurat_foundations/commits?author=marcinkuzminski

@utek (done)
https://github.com/ergo/ziggurat_foundations/commits?author=utek

@tdamsma
https://github.com/ergo/ziggurat_foundations/commits?author=tdamsma

@arianmaykon (done)
https://github.com/ergo/ziggurat_foundations/commits?author=arianmaykon

@TheMightyOnyx (done)
https://github.com/ergo/ziggurat_foundations/commits?author=TheMightyOnyx

@ekarlso
https://github.com/ergo/ziggurat_foundations/commits?author=ekarlso

[arianmaykon]

Thanks :) PR sent