Add simple_eight_switch.yaml (#1)

Support 8 channel smart relay switch https://www.aliexpress.com/item/1005005639266345.html

custom_components/tuya_local/devices/simple_eight_switch.yaml

@@ -0,0 +1,51 @@
+name: Simple Eight Switch
+primary_entity:
+  entity: switch
+  name: Switch 1
+  dps:
+    - id: 1
+      name: switch
+      type: boolean
+secondary_entities:
+  - entity: switch
+    name: Switch 2
+    dps:
+      - id: 2
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 3
+    dps:
+      - id: 3
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 4
+    dps:
+      - id: 4
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 5
+    dps:
+      - id: 5
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 6
+    dps:
+      - id: 6
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 7
+    dps:
+      - id: 101
+        name: switch
+        type: boolean
+  - entity: switch
+    name: Switch 8
+    dps:
+      - id: 102
+        name: switch
+        type: boolean