Blinds support
* **Please explain your feature request in a one or two sentences.**
Cannot control Graywind Zigbee shades through sonoff zigbee bridge


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



* **Any particular eWeLink devices that this relates to?**
Sonoff Zigbee Bridge 


* **Anything else?**

[7/25/2022, 11:17:56 AM] [eWeLink] [Device0100b2] is not supported, do create a GitHub issue with the following info:
[1514] {"bindInfos":{},"subDevId":"e4bf10c8ce38c1a4","parentid":"10016ad886","battery":86,"trigTime":"1658340967743","curPercent":0,"motorDir":"forward","motorClb":"normal","curtainAction":"open","openPercent":0}.

