feat: add `job_id`, `location`, `project`, and `query_id` properties on `RowIterator`#1733

Linchin merged 3 commits intomaingoogleapis/python-bigquery:mainfrom

b305260214-rowiterator-job-metadatagoogleapis/python-bigquery:b305260214-rowiterator-job-metadataCopy head branch name to clipboard