WIP multiline crud

Author: mvorisek

demos/form-control/multiline-crud.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Atk4\Ui\Demos;
+
+/** @var \Atk4\Ui\App $app */
+require_once __DIR__ . '/../init-app.php';
+
+// TODO