Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/bootstrap/registry/interface.php

@@ -0,0 +1,29 @@
+<?php
+
+/**
+ * The basic registry interface.
+ *
+ * @author     Time.ly Network, Inc.
+ * @since      2.0
+ * @package    Ai1EC
+ * @subpackage Ai1EC.Object
+ */
+interface Ai1ec_Registry {
+
+    /**
+     * Retrieves the key from the registry
+     *
+     * @param string $key
+     *
+     * @return mixed the value associated to the key.
+     */
+    public function get( $key );
+
+    /**
+     * Set the key into the registry.
+     *
+     * @param string $key
+     * @param mixed $value
+     */
+    public function set( $key, $value );
+}