rand00

There are examples for [euclidean](https://github.com/rand00/fry/blob/main/examples/rhythm_euclidian/main.ml) rhythms and [ratchets](https://github.com/rand00/fry/blob/main/examples/ratchet_002/main.ml). Create a new example called `rhythm_euclidian_with_ratchets`, that mixes the two features.