Add copyright header to index.js

index.js

@@ -1 +1,27 @@
+// Copyright (c) 2015, 2023, Oracle and/or its affiliates.
+
+//-----------------------------------------------------------------------------
+//
+// This software is dual-licensed to you under the Universal Permissive License
+// (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
+// 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
+// either license.
+//
+// If you elect to accept the software under the Apache License, Version 2.0,
+// the following applies:
+//
+// Licensed 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
+//
+//    https://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.
+//
+//-----------------------------------------------------------------------------
+
 module.exports = require('./lib/oracledb.js');