Add Apache Beam

[remram44]

Seems to be another pipeline execution system?

https://beam.apache.org/get-started/beam-overview/

[pditommaso]

Thanks for the contribution, however Bear belong more to the category of tools for data analytics like Spark. Here I tend to collect more tools for scientific workflows.

[remram44]

It doesn't seem that different from Dask or Ray. But you make the call!