Better With Using Custom Ingredient Classes

[WaitingIdly]

changes in this PR:

• better with mods uses StackIngredient to determine if ingredients consume amounts, this makes it actually use that custom ingredient so amount actually works.
  • remove a now-incorrect "getMaxItemInput is 1" for the MillStone.
  • adjust examples accordingly.
• fix better with addons example that uses placeholdername:snack, which is an item that doesnt exist post Reload fix #294

better with addons uses a similar thing, with an IHasSize interface. why doesnt BWA use this BWM class? who could say.