* Add support for multiple mbus devices in dsmr
A dsmr meter can have 4 mbus devices.
Support them all and also add support for a water meter on the mbus
device.
* Apply suggestions from code review
Co-authored-by: Jan Bouwhuis <jbouwh@users.noreply.github.com>
* Rewrite old gas sensor to new mbus sensor
* No force updates + fix mbus entity unique_id
* Remove old gas device
* Add additional tests
* Fix remarks from last review + move migrated 5b gas meter to new device_id
* Fix ruff error
* Last fixes
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Co-authored-by: Jan Bouwhuis <jbouwh@users.noreply.github.com>