Add more metadata to getOrCreate (as-yet unused)
Adjust indexer/test to use tx graph instead of neo4j graph
Ensure that permission scope gets correctly set on import. This will
become less of a chore when we upgrade to frames 2.4 because we can
override the default behaviour of methods like setRepository to also
set the permission scope.
Merge branch 'master' into tp-2.4.0-sparql, with updates to importers.