Add iaqualink binary sensor and unique_id (#26616)

* Add binary_platform to iaqualink integration, add unique_id

* Revert Mixin changes, move self.dev to AqualinkEntity

* Style fixes

homeassistant/components/iaqualink/switch.py

@@ -1,8 +1,6 @@
 """Support for Aqualink pool feature switches."""
 import logging
 
-from iaqualink import AqualinkToggle
-
 from homeassistant.components.switch import DOMAIN, SwitchDevice
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
@@ -25,13 +23,9 @@ async def async_setup_entry(
     async_add_entities(devs, True)
 
 
-class HassAqualinkSwitch(SwitchDevice, AqualinkEntity):
+class HassAqualinkSwitch(AqualinkEntity, SwitchDevice):
     """Representation of a switch."""
 
-    def __init__(self, dev: AqualinkToggle):
-        """Initialize the switch."""
-        self.dev = dev
-
     @property
     def name(self) -> str:
         """Return the name of the switch."""