Add write support for parquet

[charles-turner-1]

Change Summary

• In Add parquet driver #728, I added support for reading .parquet files, but completely forgot to add support for serialising catalogs back to them. This PR fixes that.
• Cleans up an issue with available compression associated with that PR.
• Tests we can deserialise and reserialise (from {.csv,.parquet} => {.csv, .parquet}).
• Adds write_kwargs, a la read_kwargs in Add parquet driver #728, plus soft deprecation of the to_csv_kwargs keywods argument when serialising.

N.B: Deserialisation & reserialisation tests round trip twice, it looks like the defaults for how empty catalog field options (in catalog.json) have changed since that catalog was created.

Checklist

• Unit tests for the changes exist
• Tests pass on CI
• Documentation reflects the changes where applicable
  • Will need to update ecgtools first to allow for quickstart guide update.
  • Relevant API reference bits updated.

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