Connect Four AI

My (next) attempt to write a Connect Four AI powered by machine learning.

Training

Run cargo run --release in the train crate folder. It takes some time until a good model comes out.

Playing

1. Link or copy the appropriate model to the connect-four crate folder.
2. Make sure the code picks up the correct model for the correct file. Modify the code to play against a different model. (TODO)
3. Run cargo run --release and play the game.