✨ Starts refactoring reader

Still missing media:group

src/Entity/Channel/Image.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Shikiryu\SRSS\Entity\Channel;
+
+class Image
+{
+    public string $url;
+    public string $title;
+    public string $link;
+    public int $width; // Maximum value for width is 144, default value is 88.
+    public int $height; //Maximum value for height is 400, default value is 31.
+    public string $description;
+
+    public array $required = ['url', 'title', 'link'];
+}