Renforce our metadata extraction process

[syphax-bouazzouni]

Context

During the submission process, we have added a step called "extract_metadata", that do an ad-hoc sparql query to extract each property defined as extracble (with the attributeextractedMetadata: true on it)

And in https://github.com/ncbo/ontologies_linked_data/pull/153, I extracted that code in a mode called MetadataExtractor

Issue

The issue is that it does not always works (see issues below) and is not extracted to a PR for Ontoportal

Related

• [x] https://github.com/ontoportal-lirmm/ontologies_linked_data/issues/57
• [x] https://github.com/ontoportal-lirmm/ontologies_linked_data/issues/59
• [ ] https://github.com/agroportal/project-management/issues/293
• [ ] https://github.com/agroportal/project-management/issues/449
• [x] https://github.com/agroportal/project-management/issues/448
• [ ] https://github.com/agroportal/project-management/issues/423
• [ ] https://github.com/agroportal/project-management/issues/421