Data quality issue: bacon is not excluded during searches that exclude pork

[jayaddison]

Describe the bug
The ingredient named bacon is a pork product, and recipes that contain it should be excluded when a recipe search that excludes pork is made. Currently this is not the case.

To Reproduce
Steps to reproduce the behavior:

1. Attempt a search that excludes pork products, for example: https://www.reciperadar.com/#search&action=search&include=onion,cabbage,noodle&exclude=pork
2. Observe that some results currently include bacon

Expected behavior
None of the recipe search results should contain ingredient lines that mention bacon when pork is in the exclude-ingredients list, because bacon is a pork product.

Screenshots
N/A

[jayaddison]

Some of this should, hopefully, be relatively straightforward to resolve for bacon and simple subcategories of it in our product list; for example, bacon rashers. We should be able to do this by making pork a parent ingredient of bacon, and then reindexing bacon-related recipes.

A trickier aspect to resolve may be bacon dripping -- an ingredient that in practice is derived from bacon/pork, but is currently subcategorized in the database under dripping, without direct reference to pork as a parent ingredient.

Some manual review/inspection of the latter recipes may be needed -- and potentially a more advanced data model.