add_column method missing in pyarrow.RecordBatch object (It's available for Table though). I think it's a simple, yet important functionality :)

Reporter: Niranda Perera / @nirandaperera

Related issues:

• [Python] Consolidate shared methods of RecordBatch and Table (is related to)

_{Note: This issue was originally created as ARROW-15434. Please see the migration documentation for further details.}