use tool parent menu for debug item

src/Entity/Browser/Menu/Tool.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Yoda\Entity\Browser\Menu;
+
+use \GtkMenu;
+use \GtkMenuItem;
+
+use \Yggverse\Yoda\Entity\Browser\Menu;
+
+class Tool
+{
+    // GTK
+    public GtkMenuItem $gtk;
+
+    // Dependencies
+    public Menu $menu;
+
+    // Requirements
+    public Tool\Debug $debug;
+
+    // Defaults
+    public const LABEL = 'Tool';
+
+    public function __construct(
+        Menu $menu
+    ) {
+        // Init dependencies
+        $this->menu = $menu;
+
+        // Init menu item
+        $this->gtk = GtkMenuItem::new_with_label(
+            $this::LABEL
+        );
+
+        // Init submenu container
+        $tool = new GtkMenu;
+
+        // Init debug menu item
+        $this->debug = new Tool\Debug(
+            $this
+        );
+
+        $tool->append(
+            $this->debug->gtk
+        );
+
+        $this->gtk->set_submenu(
+            $tool
+        );
+
+        // Render
+        $this->gtk->show();
+    }
+}