Add km module kafka gateway

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

@@ -0,0 +1,35 @@
+// 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": 15,
+  "type": "request",
+  "name": "DescribeGroupsRequest",
+  // Versions 1 and 2 are the same as version 0.
+  //
+  // Starting in version 3, authorized operations can be requested.
+  //
+  // Starting in version 4, the response will include group.instance.id info for members.
+  //
+  // Version 5 is the first flexible version.
+  "validVersions": "0-5",
+  "flexibleVersions": "5+",
+  "fields": [
+    { "name": "Groups", "type": "[]string", "versions": "0+", "entityType": "groupId",
+      "about": "The names of the groups to describe" },
+    { "name": "IncludeAuthorizedOperations", "type": "bool", "versions": "3+",
+      "about": "Whether to include authorized operations." }
+  ]
+}