Beacon/BE


 * Block entity data
 * : X coordinate of the block entity.
 * : Y coordinate of the block entity.
 * : Z coordinate of the block entity.
 * : The number of levels available from the pyramid.
 * : The primary power selected, see Potion effects for IDs. 0 means none.
 * : The secondary power selected, see Potion effects for IDs. 0 means none.
 * : Optional. When not blank, prevents the beacon from being accessed unless the opener is holding an item whose name matches this string.
 * : Optional. When not blank, prevents the beacon from being accessed unless the opener is holding an item whose name matches this string.