[MIRROR] Adds Food Allergies as a counterpart to Medicine Allergies [MDB IGNORE] (#24493)

* Adds Food Allergies as a counterpart to Medicine Allergies (#79118)

## About The Pull Request

Adds food allergies as a counterpart to medicinal allergies.

This is about as you would expect. Eating food you are allergic to
causes Anaphylaxis, which can be cured with epinephrine. If you are not
cured rapidly, you will shortly fall into a coma and die.

There is a preference for choosing your character's allergy.
Not all food types are viable allergen types: Only `"Alcohol", "Bugs",
"Dairy", "Fruit", "Grain", "Meat", "Nuts", "Seafood", "Sugar",
"Vegetables"`.

You also get a dogtag like med allergies.

Minor implementation detail: I added a "dangerous" level of food quality
/ scale, so I gave it to the Death Sandwich.

## Why It's Good For The Game

This was a request, and I saw it fairly harmless, so I said why not.

Similar to Medicine Allergy, it adds a small mechanic to concern
yourself with when you visit the kitchen, encouraging you to get a bit
more familiar with food types before diving into food at the kitchen.

As it is not as impactful as Medicine Allergy, it is only a -2 quirk.

## Changelog

🆑 Melbert
add: Adds Food Allergies as a -2 quirk. You can select which food you're
allergic to or rock a random option.
/🆑

* Adds Food Allergies as a counterpart to Medicine Allergies

---------

Co-authored-by: MrMelbert <51863163+MrMelbert@users.noreply.github.com>

code/modules/client/preferences/food_allergy.dm

@@ -0,0 +1,20 @@
+/datum/preference/choiced/food_allergy
+	category = PREFERENCE_CATEGORY_SECONDARY_FEATURES
+	savefile_key = "food_allergy"
+	savefile_identifier = PREFERENCE_CHARACTER
+	can_randomize = FALSE
+
+/datum/preference/choiced/food_allergy/init_possible_values()
+	return list("Random") + assoc_to_keys(GLOB.possible_food_allergies)
+
+/datum/preference/choiced/food_allergy/create_default_value()
+	return "Random"
+
+/datum/preference/choiced/food_allergy/is_accessible(datum/preferences/preferences)
+	if (!..())
+		return FALSE
+
+	return "Food Allergy" in preferences.all_quirks
+
+/datum/preference/choiced/food_allergy/apply_to_human(mob/living/carbon/human/target, value)
+	return