Command line script to transfer absolutes from web absolutes to metadata web service

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New command line script (configured in pyproject.toml) entrypoint function in geomagio/processing/absolutes.py

• observatory argument (can loop over if list)

• starttime argument (default now - 24 hours)

• endtime argument (default now)

• read absolutes from web absolutes

• write absolutes to metadata web service

• (or write absolutes to cal file format as different option?)