A poor implementation of Hearts you should never use.
Why do you want to get started? No one should use this. It doesn't have good
test coverage, the interfaces are poor, and it is not under active development.
The only thing it really does is play a random game of hearts. And it doesn't
even do that well; it doesn't implement passing! See for yourself, cargo run
in the auto_player directory and watch the bugs scurry.