Add support for Aeratron Fans

[sschnoor]

Fan on/off is currently supported, but when attempting to change the fan speed an error is thrown :

This plugin generated a warning from the characteristic 'Brightness': characteristic was supplied illegal value: number -2 exceeded minimum of 0.

This error happens anytime you attempt to adjust the fan speed up or down.

Please add support for Aeratron! Thank you.

[ChrisJS69]

Thinking about buying an Aeratron fan but not being able to operate it via Home is a deal breaker. Was your fan speed issue ever resolved?