* add TS_INPUT, TS_GRID and TS_TOTAL
* prepare MQTT timestamps
- add _set_mqtt_timestamp method
- fix hexdump printing
* push dev and debug images to docker.io
* add unix epoche timestamp for MQTT pakets
* set timezone for unit tests
* set name für setting timezone step
* trigger new action
* GEN3 and GEN3PLUS: handle multiple message
- read: iterate over the receive buffer
- forward: append messages to the forward buffer
- _update_header: iterate over the forward buffer
* GEN3: optimize timeout handling
- longer timeout in state init and reveived
- got to state pending only from state up
* update changelog
* cleanup
* 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
* Make __publish_outstanding_mqtt public
* update proxy counter
- on client mode connection establishment or
disconnecting update tje counection counter
* 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
* add config option to disable the modbus polling
* read more modbus regs in polling mode
* extend connection timeouts if polling mode is disabled
* update changelog
* add shutdown flag
* add more register definitions
* add start commando for client side connections
* add first support for port 8899
* fix shutdown
* add client_mode configuration
* read client_mode config to setup inverter connections
* add client_mode connections over port 8899
* add preview build
* add documentation for client_mode
* catch os error and log thme with DEBUG level
* update changelog
* add shutdown flag
* add more register definitions
* add start commando for client side connections
* add first support for port 8899
* fix shutdown
* add client_mode configuration
* read client_mode config to setup inverter connections
* add client_mode connections over port 8899
* add preview build
