Integrator: Support for Parquet file format

Parquet file format is a type of csv where the data is laid out in a columnar fashion, instead of rows. We should have native support for this.

https://parquet.apache.org/docs/file-format/

https://medium.com/mlearning-ai/parquet-file-explained-8d5b85b3ea60

https://www.jumpingrivers.com/blog/parquet-file-format-big-data-r/

https://docs.microsoft.com/en-us/azure/data-factory/format-parquet

https://commandstech.com/parquet-with-example/

Integrator should be able to read, write and consume parquet files natively.