Add new optional beta email parser thats based on ImapEngine instead of Webklex

plugins/vendor/egulias/email-validator/src/Warning/CFWSWithFWS.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Egulias\EmailValidator\Warning;
+
+class CFWSWithFWS extends Warning
+{
+    public const CODE = 18;
+
+    public function __construct()
+    {
+        $this->message = 'Folding whites space followed by folding white space';
+    }
+}