Add a randomize arg

[sharkiteuthis]

I like this, I thought about it too. Are we just reverse-engineering LineupHQ? 🙃

Obviously not, because the group constraints I'm building are more flexible and useful, and I think we eventually both want to build our own predictive models for player performance and integrate those, but it is kind of funny.

[BenBrostoff]

Haha I agree - most of this library is replicable on some websites, but so be it. I think this is useful not necessarily for choosing lineups but for getting a sense of what would happen if your projections were slightly different.