support azure language identification mode (#44)

specs.json

@@ -668,7 +668,14 @@
   },
   "azureOptions": {
     "properties": {
-      "speechSegmentationSilenceTimeoutMs": "number"
+      "speechSegmentationSilenceTimeoutMs": "number",
+      "languageIdMode": {
+        "type": "string",
+        "enum": [
+          "AtStart",
+          "Continuous"
+        ]
+      }
     },
     "required": [
     ]

test/jambonz-verb-test.js

@@ -81,6 +81,17 @@ test("validate correct verbs", async (t) => {
         }
       }
     },
+    {
+      "verb": "config",
+      "recognizer": {
+        "vendor": "google",
+        "language": "de-DE",
+        "label": "label1",
+        "azureOptions": {
+          "languageIdMode": "Continuous"
+        }
+      }
+    },
     {
       "verb": "config",
       "record": {