add missing units of measurements for energy HA autodiscovery

[reey]

Added a dedicated energy sensor management to report back as energy sensor and not fallback as a generic sensor in HA autodiscovery process

[ascillato]

Cool. Thanks a lot.

Could you add also the counter sensor and the luminosity sensor please?

[reey]

I could do that in another pull, but what do you mean by counter sensor?

[emontnemery]

We can do like this to get a graph in Hass for all sensors, including counters which don't have a unit:

const char HASS_DISCOVER_SENSOR_ANY[] PROGMEM =
  "%s,\"unit_of_measurement\":\" \","                        // " " As unit of measurement to get a value graph in Hass
  "\"value_template\":\"{{value_json['%s'].%s}}\"";          // "COUNTER":{"C1":0} -> {{ value_json['COUNTER'].C1 }}

const char HASS_DISCOVER_SENSOR_ANY_SHORT[] PROGMEM =
  "%s,\"unit_of_meas\":\" \","                        // " " As unit of measurement to get a value graph in Hass
  "\"val_tpl\":\"{{value_json['%s'].%s}}\"";          // "COUNTER":{"C1":0} -> {{ value_json['COUNTER'].C1 }}