Add km module kafka gateway

clients/build/resources/main/common/message/UpdateMetadataResponse.json

@@ -0,0 +1,27 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+{
+  "apiKey": 6,
+  "type": "response",
+  "name": "UpdateMetadataResponse",
+  // Versions 1, 2, 3, 4, and 5 are the same as version 0
+  "validVersions": "0-6",
+  "flexibleVersions": "6+",
+  "fields": [
+      { "name": "ErrorCode", "type": "int16", "versions": "0+",
+        "about": "The error code, or 0 if there was no error." }
+  ]
+}