Investigate possibility to support Parquet

[dgray16]

https://hadoop.apache.org/
https://cloud.google.com/bigquery/docs/loading-data-cloud-storage-parquet
https://cloud.google.com/bigquery/docs/exporting-data#parquet_export_details

[mminella]

Spring had a Spring for Apache Hadoop module that was built upon Spring Batch. I don't think we should revive that kind of functionality here. If there is interest in that project still, you should take it up with that project: https://spring.io/projects/spring-hadoop

[dgray16]

@mminella thanks for the update, but this issue is created to investigate possibility to add support of Parquet data type for BigQuery Spring Batch module.
Will change topic name to make it more clear.