Create gender API and adjust serialization of gender property

src/Bundle/ChillMainBundle/Controller/GenderApiController.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Chill\MainBundle\Controller;
+
+use Chill\MainBundle\CRUD\Controller\ApiController;
+use Chill\MainBundle\Pagination\PaginatorInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+class GenderApiController extends ApiController
+{
+    protected function orderQuery(string $action, $query, Request $request, PaginatorInterface $paginator, $_format)
+    {
+        return $query->addOrderBy('e.order', 'ASC');
+    }
+}