support google stt version 2 (#49)

* support google stt version 2

* fix review comments

* fix review comment

specs.json

@@ -646,6 +646,7 @@
       "awsOptions": "#awsOptions",
       "azureOptions": "#azureOptions",
       "assemblyAiOptions": "#assemblyAiOptions",
+      "googleOptions": "#googleOptions",
       "customOptions": "#customOptions"
     },
     "required": [
@@ -698,6 +699,20 @@
     "required": [
     ]
   },
+  "googleOptions" : {
+    "properties": {
+      "serviceVersion": {
+        "type": "string",
+        "enum": [
+          "v1",
+          "v2"
+        ]
+      },
+      "speechStartTimeoutMs": "number",
+      "speechEndTimeoutMs": "number",
+      "transcriptNormalization": "array"
+    }
+  },
   "cobaltOptions": {
     "properties": {
       "serverUri": "string",

test/jambonz-verb-test.js

@@ -412,6 +412,27 @@ test("validate correct verbs", async (t) => {
         "interim": true
       }
     },
+    {
+      "verb": "transcribe",
+      "transcriptionHook": "http://example.com/transcribe",
+      "recognizer": {
+        "vendor": "nvidia",
+        "language" : "en-US",
+        "interim": true,
+        "googleOptions": {
+          "serviceVersion": "v2",
+          "speechStartTimeoutMs": 500,
+          "speechEndTimeoutMs": 1000,
+          "transcriptNormalization" : [
+            {
+              "search": "dog",
+              "replace": "cat",
+              "case_sensitive": true
+            }
+          ]
+        }
+      }
+    },
     {
       "verb": "rest:dial",
       "account_sid": "1291964182631236912836123912",