Dropper/BE


 * Block entity data
 * : X coordinate of the block entity.
 * : Y coordinate of the block entity.
 * : Z coordinate of the block entity.
 * : Optional. The name of this dropper, which will display in its GUI where the default name ordinarily is.
 * : Optional. When not blank, prevents the dropper from being accessed unless the opener is holding an item whose name matches this string.
 * : List of items in the dropper.
 * : An item, including the slot tag. Dropper slots are numbered 0-8 with 0 in the top left corner.
 * See Item Format.
 * See Item Format.