Hi, I'm currently in the process of doing some integration work with the Java FlightClient/FlightStream. I'm hoping to consume FlightStream in an asynchronous manner, but the current methods `FlightStream#next` and `FlightStream#getRoot` are blocking.
Does it make sense to expose additional hooks to allow the user to get the data in a non-blocking manner? If so, I'm happy to work up a PR if nobody else is already working on it. Thanks, Devin Smith Deephaven Data Labs
