Storage tanks fill levels (#23005)

# Summary

This PR adds visual fill levels for fuel, extinguisher, water, cooking
oil and lube tanks.
The cooking oil tank now is also persistent and was added to the cargo
order manifest.

Sprites by @alsoandanswer 

## Preview

<img width="404" height="472" alt="image"
src="https://github.com/user-attachments/assets/4ff4a0dd-e790-4a63-bc1a-6e198199ee7c"
/>

code/game/objects/random/food.dm

@@ -255,20 +255,6 @@
 		/obj/item/pizzabox/pepperoni,
 	)
 
-//Sometimes the chef will have spare oil in storage.
-//Sometimes they wont, and will need to order it from cargo
-//Variety is the spice of life!
-/obj/random/cookingoil
-	name = "random cooking oil"
-	desc = "Has a 50% chance of spawning a tank of cooking oil, otherwise nothing."
-	icon = 'icons/obj/reagent_dispensers.dmi'
-	icon_state = "oiltank"
-	spawn_nothing_percentage = 50
-
-	spawnlist = list(
-		/obj/structure/reagent_dispensers/cookingoil
-	)
-
 /obj/random/chocolate
 	name = "random chocolate"
 	desc = "This is a random chocolate."