caltechlibrary/epxml_to_datacite: M1 support and general fixes

This release includes M1 support for Macs, as well as a number of other bug fixes. It enhances the caltechauthors script with support for text file inputs and improvements to series and numbering information transfer. It also fixes a bug with accepted date transfer. **Full Changelog**: https://github.com/caltechlibrary/epxml_to_datacite/compare/v1.1...v1.2