Db: Add enumCommandTemplates

Needed by Sync

library/Director/Db.php

@@ -577,6 +577,11 @@ class Db extends DbConnection
         return $this->enumIcingaObjects('command');
     }
 
+    public function enumCommandTemplates()
+    {
+        return $this->enumIcingaTemplates('command');
+    }
+
     public function enumTimeperiods()
     {
         return $this->enumIcingaObjects('timeperiod');