Search with facet option in the `entities` endpoint

[anitacaron]

Add facets to the body request.

In this order:

• "mapping_justification"
  • Enable to search using curie
• "predicate_id": []
  • Enable to search using curie
• "mapping_provider"
  • Enable to search using curie
• "object_source"
  • Enable to search using curie
• "confidence"
  • Enable to search min and max
• "mapping_set_title"