Support Symfony forms data_class mapping (#334)

Author: janedbal

composer.json

@@ -44,6 +44,7 @@
         "symfony/dependency-injection": "^5.4 || ^6.0 || ^7.0 || ^8.0",
         "symfony/doctrine-bridge": "^5.4 || ^6.0 || ^7.0 || ^8.0",
         "symfony/event-dispatcher": "^5.4 || ^6.0 || ^7.0 || ^8.0",
+        "symfony/form": "^5.4 || ^6.0 || ^7.0 || ^8.0",
         "symfony/framework-bundle": "^5.4 || ^6.0 || ^7.0 || ^8.0",
         "symfony/http-kernel": "^5.4 || ^6.0 || ^7.0 || ^8.0",
         "symfony/routing": "^5.4 || ^6.0 || ^7.0 || ^8.0",