Enhances factory for PbcoreDescDoc to generate a sample with some relations. Hope to use it in refactoring ingest_spec.rb, by putting some of that testing into a spec for Openvault::Pbcore::AssetRelationBuilder.
Fixes bug in PbcoreDescDoc factory.
Merge pull request #953 from afred/refactor-ingest-spec

Enhances factory for PbcoreDescDoc