* Adding coordinator for omada device list
* Remove dead omada devices at startup
* Tidy up tests
* Address PR feedback
* Returned to use of read-only properties for coordinators. Tidied up parameters some more
* Update homeassistant/components/tplink_omada/controller.py
* Update homeassistant/components/tplink_omada/controller.py
* Update homeassistant/components/tplink_omada/controller.py
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Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>
