GUACAMOLE-2139: Migrate all license information to new automated format.

doc/licenses/apache-commons-pool/NOTICE

@@ -0,0 +1,26 @@
+# Name:    Apache Commons Pool
+# URL:     http://commons.apache.org/proper/commons-pool/
+# From:    'Apache Software Foundation' (https://www.apache.org/)
+# License: Apache v2.0
+#
+# --- BEGIN LICENSE FILE [1.5.4] ---
+Apache Commons Pool
+Copyright 1999-2009 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
+ APACHE COMMONS POOL DERIVATIVE WORKS:
+   
+   The LinkedBlockingDeque implementation is based on an implementation written by
+   Doug Lea with assistance from members of JCP JSR-166 Expert Group and released
+   to the public domain, as explained at
+   http://creativecommons.org/licenses/publicdomain
+# --- END LICENSE FILE [1.5.4] ---
+# --- BEGIN LICENSE FILE [2.12.0] ---
+Apache Commons Pool
+Copyright 2001-2023 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (https://www.apache.org/).
+# --- END LICENSE FILE [2.12.0] ---