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

doc/licenses/apache-commons-beanutils/NOTICE

@@ -0,0 +1,9 @@
+# Name:    Apache Commons BeanUtils
+# URL:     http://commons.apache.org/proper/commons-beanutils/
+# From:    'Apache Software Foundation' (https://www.apache.org/)
+# License: Apache v2.0
+#
+# --- BEGIN LICENSE FILE ---
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+# --- END LICENSE FILE ---