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

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

@@ -0,0 +1,33 @@
+<?php
+
+namespace DirectoryTree\ImapEngine;
+
+use DirectoryTree\ImapEngine\Collections\FolderCollection;
+
+interface FolderRepositoryInterface
+{
+    /**
+     * Find a folder.
+     */
+    public function find(string $path): ?FolderInterface;
+
+    /**
+     * Find a folder or throw an exception.
+     */
+    public function findOrFail(string $path): FolderInterface;
+
+    /**
+     * Create a new folder.
+     */
+    public function create(string $path): FolderInterface;
+
+    /**
+     * Find or create a folder.
+     */
+    public function firstOrCreate(string $path): FolderInterface;
+
+    /**
+     * Get the mailboxes folders.
+     */
+    public function get(?string $match = '*', ?string $reference = ''): FolderCollection;
+}