yet another rework of vad spec

lib/jambonz/specs.json

@@ -460,8 +460,13 @@
     ]
   },
   "vad": {
-    "enable": "boolean",
-    "voiceMs": "number",
-    "mode": "number"
+    "properties": {
+      "enable": "boolean",
+      "voiceMs": "number",
+      "mode": "number"  
+    },
+    "required": [
+      "enable"
+    ]
   }
 }

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@jambonz/node-client",
-  "version": "0.2.22",
+  "version": "0.2.23",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@jambonz/node-client",
-      "version": "0.2.22",
+      "version": "0.2.23",
       "license": "MIT",
       "dependencies": {
         "bent": "^7.3.12",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jambonz/node-client",
-  "version": "0.2.22",
+  "version": "0.2.23",
   "description": "",
   "main": "lib/index.js",
   "scripts": {