Commandtemplate: add missing controller

fixes #1060

application/controllers/CommandtemplateController.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Icinga\Module\Director\Controllers;
+
+use Icinga\Module\Director\Objects\IcingaCommand;
+use Icinga\Module\Director\Web\Controller\TemplateController;
+
+class CommandtemplateController extends TemplateController
+{
+    protected function requireTemplate()
+    {
+        return IcingaCommand::load([
+            'object_name' => $this->params->get('name')
+        ], $this->db());
+    }
+}