Allow wildcard queries in value_tag filtering

[teolemon]

What

• Allow wildcard queries in value_tag filtering
  • en:cn-bio-*
  • en:it-bio-*
  • https://robotoff.openfoodfacts.org/api/v1/questions/random?count=10&lang=en&insight_types=label&value_tag=en:fr-bio-*

Why

• This would enable Hunger Games to display all products that are potentially organic.
• Currently, I maintain a spreadsheet with 2000 lines instead.
  • https://docs.google.com/spreadsheets/d/1CjFvyrf3sScLyJX1swdVR5wDJG0LGj8SSxg_yhiaOQE/edit#gid=1084248776