Please add support to [Smart Surge Protector]
* **Please explain your feature request in a one or two sentences.**
I am using HomeKit and HomeBridge in my smart home. Just downloaded Homebridge Meross homebridge-meross v9.1.0. But it says [Smart Surge Protector] not supported


* **Is your feature request related to a problem? Please describe.**
The Smart Surge Protector (actually a smart power cord) "MSP843P", not supported.


* **Any particular Meross devices that this relates to?**
See above


* **Anything else?**
The error message log:
{"uuid":"2212016888452154030148e1e9b1f2fb","onlineStatus":1,"devName":"Smart Surge Protector","devIconId":"device033_uk","bindTime":1688213507,"deviceType":"msp843p","subType":"uk","channels":[{},{"type":"Switch","devName":"Switch 1","devIconId":"device001"},{"type":"Switch","devName":"Switch 2","devIconId":"device001"},{"type":"Switch","devName":"Switch 3","devIconId":"device001"},{"type":"Switch","devName":"Switch 4","devIconId":"device001"},{"type":"USB","devName":"USB","devIconId":"device001"}],"region":"ap","fmwareVersion":"7.1.2","hdwareVersion":"7.0.0","userDevIcon":"","iconType":0,"domain":"mqtt-ap.meross.com","reservedDomain":"mqtt-ap.meross.com","cluster":1,"hardwareCapabilities":[],"firmware":"7.1.2","hbDeviceId":"2212016888452154030148e1e9b1f2fb","model":"MSP843P"}

