Move temperature conversions to sensor base class (1/8) (#48261)

* Move temperature conversions to entity base class (1/8)

* Update integrations a-c

* Leave old temperature conversion until all integrations are migrated

* tweak

* Use contextlib.suppress

* Remove the MeasurableUnitEntity mixin

* Address comments, add tests

* Fix f-string

* Drop deprecation warning from base entity class

* Update with _attr-shorthand

* Fix rebase mistakes

* Fix additional rebase mistakes

* Only report temperature conversion once

* Fix additional rebase mistakes

* Format homeassistant/components/bbox/sensor.py

* Fix check for overidden _attr_state

* Remove test workarounds from implementation

* Remove useless None-check

* Tweaks

* Migrate new sensors a-c

* Update climacell

* Push deprecation of temperature conversion forward

* Override __repr__ in SensorEntity

* Include native_value in SensorEntity attributes

* Pylint

* Black

* Black

* Fix rebase mistakes

* black

* Fix rebase mistakes

* Revert changes in august/sensor.py

* Revert handling of unit converted restored state

* Apply code review suggestion

* Fix arlo test

homeassistant/components/command_line/sensor.py

@@ -84,12 +84,12 @@ class CommandSensor(SensorEntity):
         return self._name
 
     @property
-    def unit_of_measurement(self):
+    def native_unit_of_measurement(self):
         """Return the unit the value is expressed in."""
         return self._unit_of_measurement
 
     @property
-    def state(self):
+    def native_value(self):
         """Return the state of the device."""
         return self._state