(FEATURE REQUEST) Parquet Metadata Parser

[RahulDubey391]

Hi, I am looking to raise a PR for enhancing the stat command with the ability to parse Parquet for collecting row/column stats so initial profiling can be done on data.

As of now, we have to create a BigQuery Table(External) first to be able to do analysis. Otherwise bq cli has to be used or DataCatalog service.

Wouldn't it be good if this feature would be part of gsutil itself? For future expansion, other file formats can be parsed as well.

I already have a parser ready, I am just working on integrating it with gsutil.

Let me know if I can raise a PR!