withCustomGcsTempLocation should also be implemented for BigQueryIO.Read

A function in BigQueryIO.Write called withCustomGcsTempLocation allows specification at template execution time of a GCS location used by BigQuery to write temp files. BigQuery also needs to write temp files for _read_ operations, and therefore this function should be available in BigQueryIO.Read.

This issue blocks the ability to deploy a template with BigQuery read ops to an environment where users (who will execute the template) have only read access.

Imported from Jira [BEAM-7570](https://issues.apache.org/jira/browse/BEAM-7570). Original Jira may contain additional context.
Reported by: liblonga.