fix: add cs fixer file

Author: Benoit382

.php-cs-fixer.dist.php

@@ -0,0 +1,12 @@
+<?php
+
+$config = new M6Web\CS\Config\BedrockStreaming();
+$config
+    ->getFinder()
+    ->in(
+        [
+            __DIR__.'/src'
+        ]
+    );
+
+return $config;