feature request: adding parallelized gzip and gunzip capabilities

feature request: parallel gzip
====================

Recently were sent very large files for ingest via gzip and the process took ~ 20min for a 95GB file using standard gunzip. I found a drop in replacement for [gzip written in go][1] and someone also wrote a very nice [cli creation lib][2] the two seem like a match made in heaven for utilizing compute resource to quicklycompress and decompress files on GCP without needing to wait for slow old things!

[1]: https://github.com/klauspost/pgzip
[2]: https://github.com/urfave/cli

No file, test, or entry point is named in the issue. Start by locating gsutil’s current gzip and gunzip handling, then review the proposed Go pgzip and urfave/cli references; done would mean a defined parallel compression and decompression workflow for large files on GCP.

Written by the indexing model from the issue text.