[RO-Crate] Datamap

@weil Regarding our idea from the Symposium with the local ontology: I have now created this ARC with a real word example (easy mode as the data file is in wide format) However in thearc-ro-crate-metadata__33_.json, I can't find the information on where the file is located. Any ideas on how I could include the information within the Datamap so that it is available in the RO-Crate? Currently I store the information in the Parameter[Explication] Term Source