support apache beam

[huijunwu]

Is your feature request related to a problem? Please describe.
N

Describe the solution you'd like
Apache Beam is an API for composing topologies. It has many runners such as Flink, Storm, Spark .. As more users are using Beam, Heron could be one of its runners.

Describe alternatives you've considered
NA

Additional context
NA

[manesioz]

I would like to help assist in this task if possible. How do you see this integration being implemented? Is this item on the roadmap?