* add support for Home Assistants MQTT discovery
* add format_topic a flexible separator
* add mqtt discovery for miflora
* add mqtt discovery for mithermometer
* add mqtt discovery for thermostat
* add unit to illuminance in miflora
* switch to 'away_mode_command_topic' instead of 'away_command_topic'
* revert changing the date format
* add mac to ientifiers and change the id generation
* add mac to ientifiers and change the id generation on thermostat
* add mac to ientifiers and change the id generation for mithermometer
