v2.3.0

Changes

• Add SKOS models (scheme, collection, and skos_xl label) (ontoportal-lirmm/ontologies_api_ruby_client@839018c)
• Add inScheme and memberOf attributes to class/concept model (ontoportal-lirmm/ontologies_api_ruby_client@4bcfad5)
• Add link explorer by Id (ontoportal-lirmm/ontologies_api_ruby_client@9a93fbb)
• Add the possibility for a model to have multiple media types (e.g class model will both owl:Class and skos:Concept) (ontoportal-lirmm/ontologies_api_ruby_client@9a93fbb)
• Merge branch tp upstream v2.2.0 (ontoportal-lirmm/ontologies_api_ruby_client@f26f4f4)