Update copyrights after porting tlddoc

update tagsdoc pom to epl 2.0

pom.xml

@@ -2,7 +2,7 @@
 <!--
 
     Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
-    Copyright (c) 2021-2021 Contributors to the Eclipse Foundation
+    Copyright (c) 2021-2022 Contributors to the Eclipse Foundation
 
     This program and the accompanying materials are made available under the
     terms of the Eclipse Public License v. 2.0, which is available at

tagsdoc/pom.xml

@@ -1,3 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Copyright (c) 2022 Contributors to the Eclipse Foundation
+
+    This program and the accompanying materials are made available under the
+    terms of the Eclipse Public License v. 2.0, which is available at
+    http://www.eclipse.org/legal/epl-2.0.
+
+    This Source Code may also be made available under the following Secondary
+    Licenses when the conditions for such availability set forth in the
+    Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+    version 2 with the GNU Classpath Exception, which is available at
+    https://www.gnu.org/software/classpath/license.html.
+
+    SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+
+-->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>