Issue #3268531 by hatsch: Class not found Error on Template edit, patch in comment 14438217

use Drupal\group\Entity\GroupTypeInterface;

use Drupal\group\Form\GroupPermissionsTypeSpecificForm;

use Drupal\group_permissions_template\Entity\GroupPermissionTemplateInterface;

use Drupal\group_permissions_template\entity\GroupRoleDecorator;

use Drupal\group_permissions_template\Entity\GroupRoleDecorator;

use Drupal\group_permissions_template\Service\PermissionTemplatesInterface;

use Symfony\Component\DependencyInjection\ContainerInterface;