Make parquet compression options a flag to pass in to benchmark

[cholmes]

Description

There are a number of different parquet compression options (snappy, gzip, zstd, brotli, uncompressed, etc) that can make things faster/slower and smaller/bigger. It'd be nice to be able to benchmark / compare those. Right now there's a global variable that can be used to set this. If implemented it should raise appropriate errors on the process used, as each process supports a different set of compression options.