N°2847 - Rework of Panel block

- Add 2 separate content areas (main and toolbar)
- Improve HTML template with header
- Prepare ObjectDetails block based on a panel

sources/application/UI/Layout/Object/ObjectDetails.php

@@ -0,0 +1,17 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2020 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Application\UI\Layout\Object;
+
+
+use Combodo\iTop\Application\UI\Component\Panel\Panel;
+
+class ObjectDetails extends Panel
+{
+	// Overloaded constants
+	public const BLOCK_CODE = 'ibo-object-details';
+	public const HTML_TEMPLATE_REL_PATH = 'components/object/object-details/layout';
+}