* Fixed a bug where changing fan speed was not possible
* Bump pymodbus version to 1.3.1 to fix issue #8285
* Changed all modbus components so that they use CONF_SLAVE from const.py
* Fix checking result from a modbus transaction
* Add missing decorator
* Added modbus write coil service and added descriptions
* Removed a hiding debug print
* Fixed a bug where changing fan speed was not possible
* Bump pymodbus version to 1.3.1 to fix issue #8285
* Changed all modbus components so that they use CONF_SLAVE from const.py