Added an admin page for the user groups.

src/Form/AdminPages/GroupAdminForm.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ *
+ * part-db version 0.1
+ * Copyright (C) 2005 Christoph Lechner
+ * http://www.cl-projects.de/
+ *
+ * part-db version 0.2+
+ * Copyright (C) 2009 K. Jacobs and others (see authors.php)
+ * http://code.google.com/p/part-db/
+ *
+ * Part-DB Version 0.4+
+ * Copyright (C) 2016 - 2019 Jan Böhmer
+ * https://github.com/jbtronics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ *
+ */
+
+namespace App\Form\AdminPages;
+
+
+use App\Entity\Base\NamedDBElement;
+use App\Form\Permissions\PermissionsType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class GroupAdminForm extends BaseEntityAdminForm
+{
+    protected function additionalFormElements(FormBuilderInterface $builder, array $options, NamedDBElement $entity)
+    {
+        $builder->add('permissions', PermissionsType::class, [
+            'mapped' => false,
+            'data' => $builder->getData(),
+            'disabled' => !$this->security->isGranted('edit_permissions', $entity)
+        ]);
+    }
+}