Create a Knowledge Panel compliant route for the Folksonomy Engine list of properties for a given barcode

[teolemon]

Problem

• Create a Knowledge Panel compliant route for each barcode, so that we can integrate it in the ProductOpener Product Page or in the mobile app
• This will allow for a flexible and evolutive layout, driven by the Folksonomy server
• Optional is a link to a webview allowing property input (view to be created, you can open another ticket), until we can have basic server driven editing

Code pointers

• For a reference implementation of Knowledge Panels in Python, please see https://github.com/openfoodfacts/facets-knowledge-panels/blob/main/app/knowledge_panels.py (might be broken according to @alexgarel )

Related issue

• (RfC) Allow the product page to display external Knowledge-panel spec compliant data openfoodfacts-server#10297