* Move coordinator to own file and add test cases
* Apply typing improvements from review
* Remove testcase for exception during setup
* Simplify unittest for failing serial connection
* Readd checks in serial connection test after review
* Add Landis+Gyr Heat Meter integration
* Add contant for better sensor config
* Add test for init
* Refactor some of the PR suggestions in config_flow
* Apply small fix
* Correct total_increasing to total
* Add test for restore state
* Add MWh entity that can be added as gas on the energy dashoard
* Remove GJ as unit
* Round MWh to 5 iso 3 digits
* Update homeassistant/components/landisgyr_heat_meter/const.py
* Update CODEOWNERS
Co-authored-by: Erik Montnemery <erik@montnemery.com>
