Beacon/BE


 * Tile entity data
 * : 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.