Prefect as an orchestrator

[amackillop]

I've been evaluating Prefect (on github) as an alternative to airflow for my team and was wondering how much effort it would take in order to automatically create prefect flows from a TFX Pipeline definition like how we can automatically create dags for airflow.

Since the prefect evaluation is going really well and I'm also interested in using TFX, I want to see if I can merge the two.

[htahir1]

I'd be happy to help in this -> I think prefect would be a good addition to the orchestrator list!