Rename BinarySensorDevice to BinarySensorEntity (#34462)

* Rename BinarySensorDevice to BinarySensorEntity

* Tweak

* Move deprecation warning to __new__, add test

* Move deprecation warning back to __init__

* Move deprecation warning to __init_subclass

homeassistant/components/cloud/binary_sensor.py

@@ -1,7 +1,7 @@
 """Support for Home Assistant Cloud binary sensors."""
 import asyncio
 
-from homeassistant.components.binary_sensor import BinarySensorDevice
+from homeassistant.components.binary_sensor import BinarySensorEntity
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import DISPATCHER_REMOTE_UPDATE, DOMAIN
@@ -18,7 +18,7 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
     async_add_entities([CloudRemoteBinary(cloud)])
 
 
-class CloudRemoteBinary(BinarySensorDevice):
+class CloudRemoteBinary(BinarySensorEntity):
     """Representation of an Cloud Remote UI Connection binary sensor."""
 
     def __init__(self, cloud):