create comment classes

public/site/plugins/comments/src/Reply.php

@@ -0,0 +1,24 @@
+<?php
+namespace adrienpayet\comments;
+
+class Reply extends BaseComment {
+  
+  protected $parentId;
+  
+  public function __construct($data) {
+    parent::__construct($data);
+    $this->parentId = $data['parentId'];
+  }
+
+  
+  public function parentId() {
+    return $this->parentId;
+  }
+
+  public function toArray() {
+    $array = parent::toArray();
+    $array['parentId'] = $this->parentId;
+
+    return $array;
+  }
+}