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

plugins/vendor/directorytree/imapengine/src/MessageParser.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace DirectoryTree\ImapEngine;
+
+use ZBateson\MailMimeParser\IMessage;
+use ZBateson\MailMimeParser\MailMimeParser;
+
+class MessageParser
+{
+    /**
+     * The mail mime parser instance.
+     */
+    protected static ?MailMimeParser $parser = null;
+
+    /**
+     * Parse the given message contents.
+     */
+    public static function parse(string $contents): IMessage
+    {
+        return static::parser()->parse($contents, true);
+    }
+
+    /**
+     * Get the mail mime parser instance.
+     */
+    protected static function parser(): MailMimeParser
+    {
+        return static::$parser ??= new MailMimeParser;
+    }
+}