Never generates mononyms

[hakanai]

As testing edge cases is sort of the point of testing, I was surprised to find that this library never generates names consisting of a single word.

I think it should do this with some random probability, so people don't get lulled into some false sense of security that their name logic is correct, while missing this obvious edge case.

If you need a specific culture where these occur natively: https://en.wikipedia.org/wiki/Javanese_name