OM4.1 test: Ontology has a license available

This test verifies if a license (or rights) are associated with the ontology. The test will pass if a license is declared using any of the following properties: dcterms:license, schema:license, doap:license or cc:license.

If a license is not found, but rights are declared (using dc:rights, dcterms:rights or dcterms:accessRights), the test will pass as well.

Otherwise, the test will fail (i.e., no license or rights are declared).