Extend get_taxonomy to other flavors (obf, opf, opff) #465
Description
Story
With the recent improvements in the non-food taxonomies - especially in taxonomies/product/categories.txt - it would be useful to have a way to fetch it easily.
The openfoodfacts/open-prices would benefit from it firsthand and start integrating non-food categories for instance :)
Extra info
similar issue: #220