Fix device name not set on all incomfort platforms (#118827)

* Prelimenary tests for incomfort integration

* Use snapshot_platform

* Use helper

* Ensure the device name is set in device info

* Move snapshot tests to platform test modules

* Move unused snapshot file

* Naming and docstr

* update snapshots

* cleanup snapshots

* Add water heater tests

.coveragerc

@@ -591,11 +591,7 @@ omit =
     homeassistant/components/iglo/light.py
     homeassistant/components/ihc/*
     homeassistant/components/incomfort/__init__.py
-    homeassistant/components/incomfort/binary_sensor.py
     homeassistant/components/incomfort/climate.py
-    homeassistant/components/incomfort/errors.py
-    homeassistant/components/incomfort/models.py
-    homeassistant/components/incomfort/sensor.py
     homeassistant/components/incomfort/water_heater.py
     homeassistant/components/insteon/binary_sensor.py
     homeassistant/components/insteon/climate.py