Better handle umbrella and sub-brands

[hangy]

Gut & Günstig is a brand sold in Edeka stores. As it's produced for Edeka, this is mentioned on the packaging a lot. Robotoff sees it and matches the regex to Edeka.

It could be useful to not suggest users to add the "Edeka" brand to the products if "Gut & Günstig" is present anywhere on the product (possibly including other images for the same product).

[hangy]

Same for Milbona/LIDL: https://de.openfoodfacts.org/produkt/4056489018407/fettarmer-kefir-mild-milbona
Also Sprengel/ALDI: https://world.openfoodfacts.org/product/29040537/chocolat-assortment

[raphael0202]

I think we want "mother" brands to be included as well. @teolemon Can you confirm?

[hangy]

I don't think that would be useful (in ProductOpener). For example, it could drastically skew averages of the "premium" Edeka products in cases where similar products are sold under the child discount brand Gut & Günstig.

[hangy]

cc @stephanegigandet 🙂