FIBOFTF — Introduce inverse property of hasOrganizationMember

For the property hasOrganiztionMember which is requested in the preceding issue, the inverse for this property is also to be added.

note that this is not the hasMember / isMemberOf relationships in Relations.rdf, but a separate pair of relationships attached to the PartyInRole conceot of OrganizationMember

Needed for Proof of Concept ontologies.

Introduce inverse property of hasOrganizationMember

Discussion involved:

Apply the new treatment to extensions of what's in FIBO OMG, similarly to what we agreed for abstractions, i.e. we have a separate namespace with these additional relations in them, similar to the ones with the lattice etc. Unless this adds new meaning to the ontology it would go in those external ontologies.