add MethodNotAllowedException class

core/libraries/Hubzero/Error/Exception/MethodNotAllowedException.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * @package    framework
+ * @copyright  Copyright (c) 2005-2024 The Regents of the University of California.
+ * @license    http://opensource.org/licenses/MIT MIT
+ */
+
+namespace Hubzero\Error\Exception;
+
+/**
+ * 'Method Not Allowed' Exception.
+ * Defaults to 405 code.
+ */
+class MethodNotAllowedException extends \Exception
+{
+	/**
+	 * Constructor
+	 *
+	 * @param   string   $message   The Exception message to throw.
+	 * @param   integer  $code      The Exception code.
+	 * @param   object   $previous  The previous exception used for the exception chaining.
+	 * @return  void
+	 */
+	public function __construct($message = '', $code = 405, Exception $previous = null)
+	{
+		parent::__construct($message, $code, $previous);
+	}
+}
+