Sonoff TH Elite (THR316D) not supported by ewelink
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### What issue do you have? Please be as thorough and explicit as possible.
Sonoff TH Elite (THR316D) not supported


### Details of your setup.
* Do you use (1) Homebridge UI-X (2) Homebridge CLI or (3) HOOBS? 

3

* Which version of Homebridge/HOOBS do you have?

4.2.5

* Which platform do you run Homebridge/HOOBS on (e.g. Raspberry Pi/Windows/HOOBS Box)? Please also mention your version of Node.js/NPM if known.

Raspberry Pi 4
Node 16.15.1

* Which version of this plugin (homebridge-ewelink) do you have? Has the issue started since upgrading from a previous version?
9.0.1
Sonoff device is new and has never run


* Which eWeLink devices do you have that are causing issues? Please include product models if applicable.

Sonoff TH Elite (THR316D)

### Please paste any relevant logs below.
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```
[181] {"bindInfos":{"alexa":["416837ac-ac56-4bab-ae8d-0a64aed9e9b7_26ca1996a20e8bd63617ab272d4eeede1d2d8e32"]},"version":8,"ssid":"VillaWLAN","bssid":"C8:0E:14:DD:EA:36","fwVersion":"1.0.1","switch":"off","startup":"off","pulseConfig":{"pulse":"off","switch":"off","pulseWidth":500},"sledOnline":"on","tempUnit":0,"sensorType":"DS18B20","currentTemperature":"26.4","currentHumidity":"unavailable","rssi":-85,"staMac":"78:21:84:BA:EA:14","autoControl":[],"autoControlEnabled":0,"uiActive":60,"timeZone":2,"only_device":{"ota":"success","ota_fail_reason":0}}.
```
