start a restructure

Structural/DependencyInjection/Parameters.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace DesignPatterns\DependencyInjection;
+
+/**
+ * Parameters interface
+ */
+interface Parameters 
+{
+    /**
+     * Get parameter
+     *
+     * @param string|int $key
+     * 
+     * @return mixed
+     */
+    public function get($key);
+
+    /**
+     * Set parameter
+     *
+     * @param string|int $key
+     * @param mixed      $value
+     */
+    public function set($key, $value);
+}