[Efergy integration] Update integration to include Energy long term statistics

With HA 2021.8, was looking forward to use the new Energy bits to plug in my grid fed house monitored by Efergy.

I’ve had the integration working for years, but it doesn’t support ‘long term statistics’ . I am unsure if this is managed by the HA team itself or by a third party. Can’t see who I would need to raise this issue to?

Expected data source not listed - Home Assistant (home-assistant.io)

Sensor Entity | Home Assistant Developer Docs (home-assistant.io)

I think this feature request can be closed, meanwhile the entities do have the correct state_class to use for the energy dashboard :wink: