[License] add license to file header and fix Notice file (#5717)

NOTICE.txt

@@ -7,20 +7,48 @@ The Apache Software Foundation (http://www.apache.org/).
 Based on source code originally developed by
 Baidu (http://www.baidu.com/).
 
-This product includes software developed by the LevelDB.
-Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+--------------------------------------------------------------------------------
 
-This product includes software developed by CPython for searching string function.
-(https://github.com/python/cpython)
+This product includes code from Apache Impala, which includes the following in
+its NOTICE file:
 
-This product includes software developed by Chromium.
-Copyright (c) 2011 The Chromium Authors. All rights reserved.
+    Apache Impala
+    Copyright 2019 The Apache Software Foundation
 
-This product includes software developed by Austin Appleby for MurmurHash3.
-The author hereby disclaims copyright to this source code.
+    This product includes software developed at
+    The Apache Software Foundation (http://www.apache.org/).
 
-This product includes software developed by cyb70289 for validating utf8 string.
-Copyright (c) cyb70289(https://github.com/cyb70289). All rights reserved.
+    Portions of this software were developed at
+    Cloudera, Inc (http://www.cloudera.com/).
 
-This product includes software developed by the supersonic.
-Copyright (c) Google Inc(https://github.com/google/supersonic). All rights reserved.
+    This product includes software developed by the OpenSSL
+    Project for use in the OpenSSL Toolkit (http://www.openssl.org/)
+
+    This product includes cryptographic software written by Eric Young
+    (eay@cryptsoft.com).  This product includes software written by Tim
+    Hudson (tjh@cryptsoft.com).
+
+    This product includes software developed by the University of Chicago,
+    as Operator of Argonne National Laboratory.
+    Copyright (C) 1999 University of Chicago. All rights reserved.
+
+--------------------------------------------------------------------------------
+
+This product includes code from Apache Kudu, which includes the following in
+its NOTICE file:
+
+    Apache Kudu
+    Copyright 2016 The Apache Software Foundation
+
+    This product includes software developed at
+    The Apache Software Foundation (http://www.apache.org/).
+
+    Portions of this software were developed at
+    Cloudera, Inc (http://www.cloudera.com/).
+
+    This product includes software developed by the OpenSSL
+    Project for use in the OpenSSL Toolkit (http://www.openssl.org/)
+
+    This product includes cryptographic software written by Eric Young
+    (eay@cryptsoft.com).  This product includes software written by Tim
+    Hudson (tjh@cryptsoft.com).

fe_plugins/auditdemo/pom.xml

@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+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.
+-->
+
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

fe_plugins/auditloader/pom.xml

@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+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.
+-->
+
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

fe_plugins/pom.xml

@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+
+<!--
+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.
+-->
+
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>