0.0.6 - Dehumidifier support

Adds support for Goldair Dehumidifier GPDH430. GPDH440 may also work but has extra settings that I'm unable to test without a device.

Also removed support for the sensor option - this is easily achievable with template sensors and didn't make sense as a boolean with dehumidifiers as there are multiple metrics available:

sensor:
  - platform: template
    sensors:
      dehumidifier_temperature:
        value_template: "{{ state_attr('climate.dehumidifier', 'current_temperature') }}"
        unit_of_measurement: celcius
      dehumidifier_humidity:
        value_template: "{{ state_attr('climate.dehumidifier', 'current_humidity') }}"
        unit_of_measurement: humidity