Display as Fan for Single Channel Divice
* **Please explain your feature request in a one or two sentences.**
I would like to be able to display a single channel device such as the Sonoff Basic or MINI as a Fan under HomeKit.



* **Is your feature request related to a problem? Please describe.**
I happen to have a WIMO Smart Plug that I attached to one of my Fans. In HomeKit device settings I was am able to set it to display as a Switch, Outlet, or as a **_Fan_** (ON/OFF only) icon.
I am currently unable to do this with my Sonoff devices and figured it would make a nice addition to this plugin.


* **Any particular eWeLink devices that this relates to?**
Sonoff Basic, Sonoff MINI, etc.


* **Anything else?**
Thanks for the great support you give to this plugin. This plugin is a game changer!

