Add upstream plugins

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

wp-content/plugins/all-in-one-event-calendar/lib/less/variable/abstract.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * Abstract class for less variables.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.0
+ *
+ * @package    AI1EC
+ * @subpackage AI1EC.Less.Variable
+ */
+abstract class Ai1ec_Less_Variable extends Ai1ec_Html_Element {
+
+    /**
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * @var string
+     */
+    protected $description;
+
+    /**
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * it takes an array of parameters and a renderable.
+     *
+     * @param Ai1ec_Registry_Object $registry
+     * @param array $params
+     * @internal param \Ai1ec_Renderable $renderable
+     */
+    public function __construct( Ai1ec_Registry_Object $registry, array $params ) {
+        parent::__construct( $registry );
+        $this->id          = $params['id'];
+        $this->description = $params['description'];
+        $this->value       = $params['value'];
+    }
+
+}