Script to register Figshare dois in Datacite

Python script to register 4TU.ResearchData dois from Figshare in Datacite. The script was originally made to run ad-hoc on a local computer and was later adapted to also run daily on a server. Apart from the daily update, there are options to registrate specific dois, e.g. based on a query. The metadata sent to datacite contains custom metadata that are specific for 4TU.ResearchData.