Spoiled Weighted Average - Au Naturel Edit

A general bugfix update:

- freshly produced items or items with no spoiled nbt data had a bug which often stopped them being combined or stacked with other items via the spoiled dynamic recipe.  Hopefully this is now fixed.

-  salted items could end up with inconsistent nbt data depending on when they were slated, rpeventing them being stackable.  We've changed the treatment/integration with the salt mod so that salted items shouldn't have a spoiled state.  After all, that's the point of them being salted.

- Modded food items with pre-existing NBT tags never initialised spoiled data, so items like raw fish from fish of thieves and tides were never spoiling, negating the mod partly.  We've fixed this and also attempted to have spoilage attempt to apply to items with the forge:food tag, just incase they are using non-standard item registry/creation/whatever and weren't being picked up by the other method.

- cleaned up some debug log spam

- Fixed (well, maybe, it was kinda hard to reproduce) issue where polymorph was having output results from previous recipes/item combinations appear as options for new item combinations.  This bug was, we believe, purely aesthetic, as we don't believe you actually could craft those incorrect items even when presented as an incorrectly optional presentation in the polymorph menu.