Add food_origin slots to mirror food_acquisition terms

We currently have food_acquisition_... terms e.g. `food_acquisition_city`, `food_acquisition_country`, `food_acquisition_country_subdivision` etc but we only have `food_origin_country` to describe the place where the food originally came from. We should probably mirror the food_acquisition_... terms with food_origin_... .

Start by locating the existing food_acquisition_ terms and the food_origin_country term in the repository. Compare their naming and structure, then add the corresponding food_origin_ terms; done means the food-origin set mirrors the food-acquisition terms described in the issue.

Written by the indexing model from the issue text.