BeaconBlockEntity
Beacon with ID = 21.
id:string= "Beacon"
primary:int= 0
0 means none, 1 speed, 2 haste, 3 resistance, 4 jump boost and 5 strength.
secondary:int= 0
0 means none, 1 regeneration and 2 boost effect.
Block Entity will be saved without instantiating new one when transporting (via pistons, commands, etc.).