2023.6.dev6 - constant memory footprint

New:

• Config.DISABLE_TQDM: A boolean switch to silence tqdm.
• Table.save now defaults to zipfile.ZIP_DEFLATED, compression_level=1 as this is only 10% slower, yet saves 80% disk space.
• Column.iter_by_page : An iterator for traversing data by page.
• module reindex implements a constant memory method for re-indexing tasks which now is used by Lookup, Join, Sort and Filter.
• Benchmarks have been updated