BREAKING CHANGE! (but only for users of multiple go-eChargers)

I have decided for an alternative (better) approach to support sending surplus PV data to multiple go-eChargers
#13

With the new implementation the Service GUI mode will work again - also if multiple configurations of the integration are configured (in order to support multiple chargers (with different serial numbers).

So IF you have multiple go-eChargers in your HA installation - you must adjust your automations (again) - I am sorry for this inconvenience.