Implement the system status api endpoint. Closes #1936

app/Integrations/Contracts/System.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Integrations\Contracts;
+
+/**
+ * This is the system interface.
+ *
+ * @author James Brooks <james@alt-three.com>
+ */
+interface System
+{
+    /**
+     * Get the entire system status.
+     *
+     * @return array
+     */
+    public function getStatus();
+}