Add support for package payment methods and basic checkout proccess

backend/app/plugins/wiaas/includes/class-wiaas-admin.php

@@ -0,0 +1,14 @@
+<?php
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly
+}
+
+class Wiaas_Admin {
+
+	public static function init() {
+		require_once dirname( __FILE__ ) . '/admin/package/class-wiaas-admin-package-pricing.php';
+	}
+}
+
+Wiaas_Admin::init();