* add polling invertval and method ha_remove()
* add client_mode arg to constructors
- add PollingInvervall
* hide some topics in client mode
- we hide topics in HA by sending an empty register
MQTT topic during HA auto configuration
* add client_mode value
* update class diagram
* fix modbus close handler
- fix empty call and cleanup que
- add unit test
* don't sent an initial 1710 msg in client mode
* change HA icon for inverter status
* increase test coverage
* accelerate timer tests
* set Register.NO_INPUTS fix to 4 for GEN3PLUS
* don't set Register.NO_INPUTS per MODBUS
* fix unit tests
* register OUTPUT_COEFFICIENT at HA
* update changelog
* - Home Assistant: improve inverter status value texts
* - GEN3: add inverter status
* on closing send outstanding MQTT data to the broker
* force MQTT publish on every conn open and close
* reset inverter state on close
- workaround which reset the inverter status to
offline when the inverter has a very low
output power on connection close
* improve client modified
- reduce the polling cadence to 30s
- set controller statistics for HA
* client mode set controller IP for HA
