Powerworld PW58410: get tank temperature from parameter group 1

Issue #1530

custom_components/tuya_local/devices/powerworld_pw58410_waterheater.yaml

@@ -41,6 +41,15 @@ primary_entity:
       range:
         min: 0
         max: 99
+    - id: 118
+      type: base64
+      optional: true
+      name: current_temperature
+      mapping:
+        - mask: "00000000000000000000000000000000000000000000000\
+                 000000000FFFFFFFF000000000000000000000000000000\
+                 00000000000000000000000000000000000000000000000\
+                 0000000000000000000"
     - id: 118
       type: string
       optional: true