LG Fans ThinQ Support
<!--
First, You need enable Homebridge debug mode, check debug logging and you can see something like this:
```
[LGThinQ] Found device:  xxx-xxx-xxx-xxx-xxx: Washer (WASHER xxxxxxxx)
```
if device currently not supported, maybe
```
[LGThinQ] Device not supported:  xxx-xxx-xxx-xxx-xxx: Dryer (DRYER xxxxxxxx)
[LGThinQ] device data: *********************
```
-->

**Which device do you want to add? Please describe:**

Add support for controlling LG Ceiling Fans 

https://www.lg.com/in/fans

**Describe the solution you'd like:**

Functions Desired:
ON/OFF
Speed Control : LOW/MED/HIGH/TURBO