rdv: add user calendar endpoint + add this calendar in the calendar

src/Bundle/ChillCalendarBundle/Controller/CalendarAPIController.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Chill\CalendarBundle\Controller;
+
+use Chill\MainBundle\CRUD\Controller\ApiController;
+use Symfony\Component\HttpFoundation\Request;
+
+
+class CalendarAPIController extends ApiController
+{
+
+    protected function customizeQuery(string $action, Request $request, $qb): void
+    {
+        if ($request->query->has('main_user')) {
+
+            $qb->where('e.mainUser = :main_user')
+               ->setParameter('main_user', $request->query->get('main_user'));
+
+        }
+    }
+
+}