Move shouldDiscover in a new system/Modules class

Creating new system/Modules/Modules.php file and moves shouldDiscover function into it away from user hand like before app/Config/Modules.php
to help avoid tampering with the core functions

system/Modules/Modules.php

@@ -0,0 +1,88 @@
+<?php
+
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP
+ *
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 British Columbia Institute of Technology
+ * Copyright (c) 2019-2020 CodeIgniter Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @package    CodeIgniter
+ * @author     CodeIgniter Dev Team
+ * @copyright  2019-2020 CodeIgniter Foundation
+ * @license    https://opensource.org/licenses/MIT	MIT License
+ * @link       https://codeigniter.com
+ * @since      Version 4.0.0
+ * @filesource
+ */
+
+namespace CodeIgniter\Modules;
+
+/**
+ * Modules Class
+ *
+ * @package CodeIgniter\Modules
+ * @author  EllisLab Dev Team
+ * @link 	https://codeigniter.com/user_guide/general/modules.html
+ */
+class Modules
+{
+	/**
+	 * Auto-Discover
+	 *
+	 * @var boolean
+	 */
+	public $enabled = true;
+
+	/**
+	 * Auto-Discovery Within Composer Packages
+	 *
+	 * @var boolean
+	 */
+	public $discoverInComposer = true;
+
+	/**
+	 * Auto-Discover Rules Handler
+	 *
+	 * @var array
+	 */
+	public $aliases = [];
+
+	/**
+	 * Should the application auto-discover the requested resource.
+	 *
+	 * @param string $alias
+	 *
+	 * @return boolean
+	 */
+	public function shouldDiscover(string $alias): bool
+	{
+		if (! $this->enabled)
+		{
+			return false;
+		}
+
+		return in_array(strtolower($alias), $this->aliases);
+	}
+}