feat(smartplugv2_energyv2): add Blackt Electrotech model

Issue #5743

custom_components/tuya_local/devices/smartplugv2_energyv2.yaml

@@ -16,6 +16,9 @@ products:
   - id: keyjup78v54myhan
     manufacturer: GoLogi
     model: IP44
+  - id: key7mapd9sdpyyf9
+    manufacturer: Blackt Electrotech
+    model: Smart Meter Pro Switch
 entities:
   - entity: switch
     class: outlet