ORCID not picked up when parsing manifest

The "orcid" property is not picked up when parsing manifest.json of an opened bundle, meaning agent.getOrcid() is always blank afterwards.

This may be because the JSON-LD @context https://w3id.org/bundle/context wrongly maps "orcid" property to http://purl.org/wf4ever/roterms#orcid - but that property is not defined in that ontology. (And neither is this property recognized by our RDFToManifest code).

Suggested workaround is to map instead to prov:alternateOf and pick up ORCID if the hostname starts with orcid.org – ideally that it conforms to https://support.orcid.org/knowledgebase/articles/116780-structure-of-the-orcid-identifier