* Removed broken EntityEatEvents - these don't fit the pattern since they only apply to Human entities anyway. PlayerItemConsumeEvent and PlayerInteractEvent can be used for cancellation purposes, and plugins can do custom stuff without mess.
* Restrict item consuming to Living entities only
* Added FoodSource->requiresHunger()
* Only items implementing the Consumable interface can now be consumed.
* The effects from consuming items are now generic-ized by way of the Living->consume() function. This is overridden in Human to allow applying food and hunger.
* Fixed the hardcoded mess for buckets
the count parameter is useless since Item ctor should now only be used for constructing item _types_, not actual items. All item creations for inventories etc, should go through the ItemFactory.
