[Feature Request]: Apache Beam partitioning support

### What would you like to happen?

Implement partitioning support, present in the local Hop pipeline engine, for Beam pipelines.

https://beam.apache.org/documentation/transforms/java/elementwise/partition/

### Issue Priority

Priority: 3

### Issue Component

Component: Beam

Start by comparing partitioning in the local Hop pipeline engine with the Apache Beam Partition transform documentation linked in the issue. Identify the Beam pipeline entry points and existing tests for similar transforms; done means Beam pipelines support the requested partitioning behavior consistently with the local engine.

Written by the indexing model from the issue text.