Add support for 'sound_switch' service

futurehome/src/mqtt/demo_data/device.json

@@ -2336,5 +2336,81 @@
         "intf": ["cmd.meter.get_report", "evt.meter.report", "cmd.meter.reset"]
       }
     }
+  },
+  {
+    "client": {
+      "name": "Smart Doorbell"
+    },
+    "id": 1002,
+    "model": "zw - Futurehome - Doorbell Pro",
+    "modelAlias": "Doorbell Pro",
+    "type": {
+      "subtype": "door",
+      "supported": {
+        "siren": []
+      },
+      "type": "siren"
+    },
+    "locationRef": {
+      "id": "12",
+      "type": "Room"
+    },
+    "thingRef": {
+      "id": "167"
+    },
+    "origin": "056e610614c848c51a",
+    "services": {
+      "sound_switch": {
+        "name": "sound_switch",
+        "addr": "/rt:dev/rn:zw/ad:1/sv:sound_switch/ad:1002_0",
+        "enabled": true,
+        "props": {
+          "sup_tones": [
+            {
+              "tone_id": 1,
+              "duration": 5,
+              "name": "01 Ding Dong"
+            },
+            {
+              "tone_id": 2,
+              "duration": 9,
+              "name": "02 Ding Dong Tubular"
+            },
+            {
+              "tone_id": 3,
+              "duration": 10,
+              "name": "03 Traditional Apartment Buzzer"
+            },
+            {
+              "tone_id": 4,
+              "duration": 1,
+              "name": "04 Electric Apartment Buzzer"
+            },
+            {
+              "tone_id": 5,
+              "duration": 3,
+              "name": "05 Westminster Chimes"
+            },
+            {
+              "tone_id": 25,
+              "duration": 15,
+              "name": "25 Emergency Alert"
+            }
+          ],
+          "supports_play_with_volume": true
+        },
+        "intf": [
+          "cmd.config.get_report",
+          "cmd.config.set",
+          "evt.config.report",
+          "cmd.play.get_report",
+          "cmd.play.set",
+          "cmd.play.stop",
+          "evt.play.report"
+        ],
+        "metadata": null
+      }
+    },
+    "metadata": null
   }
 ]