Support reporting for closuresWindowCovering cluster (#1837)

lib/extension/deviceReport.js

@@ -16,6 +16,11 @@ const candidates = {
     'lightingColorCtrl': {
         attrs: ['colorTemperature', 'currentX', 'currentY'],
     },
+    'closuresWindowCovering': {
+        attrs: ['currentPositionLiftPercentage', 'currentPositionTiltPercentage'],
+        reportIntervalMin: 2,
+        reportIntervalMax: 300,
+    },
 };
 
 const reportInterval = {