Add Whirlpool integration (#48346)

* Add Whirlpool integration

* Apply suggestions from code review

Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>

* Apply suggestions from code review

* Fix lint

* Fix lint and tests

* Apply suggestions from code review

Co-authored-by: J. Nick Koston <nick@koston.org>

* Use dict lookups

* Lint

* Apply code changes from PR review

* Do real integration setup in tests

* Apply suggestions from review & fix test

* Replace get with array operator

* Add suggestions from code review

* Rename test var

Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
Co-authored-by: J. Nick Koston <nick@koston.org>

homeassistant/generated/config_flows.py

@@ -302,6 +302,7 @@ FLOWS = [
     "wallbox",
     "waze_travel_time",
     "wemo",
+    "whirlpool",
     "wiffi",
     "wilight",
     "withings",