Prevent HomeKit enabled Meross devices from being bridged
* **Please explain your feature request in a one or two sentences.**

I have a mix of Meross devices such that some came with HomeKit support and some don't. When using the plugin via Meross cloud, all devices are bridged by Homebridge, even those already with HomeKit support, causing duplicates to show up. 

* **Is your feature request related to a problem? Please describe.**

Yes. I was hoping that I would not see duplicate devices.  

* **Any particular Meross devices that this relates to?**
The Meross 3 way switches have a version that works with HomeKit, specifically MSS550X. A list in configs of serials to not bridge would be appreciated, or an automated form of detecting whether or not a device supports HomeKit already would work too. 


* **Anything else?**


Thanks for the hard work!