Brainfuck

As the name implies, this is a very simple Brainfuck interpreter written in Nit.

Yes, it is (mostly) useless, but it might serve as an example of a simple Nit program.

Question : Do I leave it in Contrib, or should I move it to examples ?
Ouais, mais ça j'm'en fous au pire, l'array grandit au fur et à mesure