Hats reimport pipeline

[hombit]

Feature request

It would be useful to have a HATS reimport pipeline to simplify tasks such as re-partitioning HATS catalogs. This could be implemented as a thin wrapper around ImportArguments, which would handle file paths, the format (parquet), use/add_healpix_29, and default to using the same catalog name.

I had to write something like this to do that, and it took me a while to figure it out.

catalog = read_hats(input_catalog_path)

column_names = catalog.schema.names
column_names.remove('Dir')
column_names.remove('Norder')
column_names.remove('Npix')

args = ImportArguments(
    ra_column=catalog.catalog_info.ra_column,
    dec_column=catalog.catalog_info.dec_column,
    input_path=input_catalog_path / "dataset",
    file_reader=ParquetReader(column_names= column_names),
    output_artifact_name=catalog.catalog_name,
    output_path=output_dir,
    pixel_threshold=100_000,
    use_healpix_29=True,
    add_healpix_29=False,
)

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• I have described the purpose of the suggested change, specifying what I need the enhancement to accomplish, i.e. what problem it solves.
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