caltechlibrary/ames: py_dataset transition, usage reports, CodeMeta improvements

This release transitions to using the standalone py_dataset wrapper. It includes completely revamped usage reports for CaltechDATA, including preparation of COUNTER reports for submission to DataCite. There are also improvements to CodeMeta including functions to get CodeMeta from DataCite and build a CaltechDATA DOI badge for a GitHub repo. This release also adds monograph information to the DOI report and includes other general cleanup and reorganization.