Motion Sensor Support
## Device info

```
{
   "active_time":1639040562,
   "biz_type":0,
   "category":"pir",
   "create_time": xxxx,
   "icon":"smart/icon/1552636253kn1yhumf49q_0.png",
   "id":"xxx",
   "ip":"xxx",
   "lat":"xxx",
   "local_key":"d8c9af6638bdcc37",
   "lon":"xxx",
   "model":"SW81",
   "name":"Smart motion sensor",
   "online":true,
   "owner_id":"xxx",
   "product_id":"mokkxfsfgsgkahao",
   "product_name":"LSC SMART Connect Motion Sensor",
   "status":[
      {
         "code":"pir",
         "value":"pir"
      },
      {
         "code":"battery_state",
         "value":"high"
      }
   ],
   "sub":false,
   "time_zone":"+01:00",
   "uid":"xxx",
   "update_time":1639040566,
   "uuid":"xxx"
}
```

## Device functions

It doesn't have any. It's a read only thing. 
