fedcode-next: Prepare vulnerability data enrichment and curation automation

[pombredanne]

To prepare vulnerability data enrichment and curation automation, we should design new and updated schemas and models to store enriched vulnerability data and create a core framework for curation automation.

• fedcode-next: New and updated schemas to store enriched vulnerability data in FederatedCode federatedcode#67
• fedcode-next: Code framework to automatically tag as "curated" the base data that only needs quick or no human review #1715