* Add switch component * Update homeassistant/components/plugwise/switch.py Co-authored-by: J. Nick Koston <nick@koston.org> * Update homeassistant/components/plugwise/switch.py Co-authored-by: J. Nick Koston <nick@koston.org> * Improvements by @bdraco Co-authored-by: J. Nick Koston <nick@koston.org>