Hide and show

• hide: the objects are hidden while the entity is in state, and shown in the other states.
• show: the objects are shown while the entity is in state, and hidden in the other states.

- entity: binary_sensor.garage_car
  type3d: show
  object_id: <car>
  show:
    state: 'on' # the car is there only while the sensor sees it
- entity: switch.christmas_tree
  type3d: hide
  object_id: <christmas_tree>
  hide:
    state: 'off'