Added support for Loratap QCSC400ZB-V2 covers switch

DEVICES.md

@@ -453,6 +453,7 @@ of device.
 - LoraTap GDC100W garage door opener
 - LoraTap QCSC420W double curtain switch
 - LoraTap SC500W-V1 curtain switch (supports many other simple curtain/blind controllers)
+- LoraTap QCSC400ZB-V2 curtain switch
 - M027 curtain module (sold under several brands, including zemismart, meterk and others)
 - M515 curtain motor
 - Moes SCS80 Touch curtain swich with backlight and timing control

custom_components/tuya_local/devices/loratap_curtain_switch_QCSC400ZB-V2.yaml

@@ -0,0 +1,26 @@
+name: ZigBee Curtain Switch
+products:
+  - id: qa8s8vca
+    name: LoraTap QCSC400ZB-V2
+primary_entity:
+  entity: cover
+  class: blind
+  dps:
+    - id: 1
+      name: control
+      type: string
+      mapping:
+        - dps_val: open
+          value: open
+        - dps_val: close
+          value: close
+        - dps_val: stop
+          value: stop
+    - id: 8
+      name: control_back_mode
+      type: string
+      mapping:
+        - dps_val: forward
+          value: forward
+        - dps_val: backward
+          value: backward