- Renderer: replace AuthorizationCheckerInterface with PermissionResolver
  (security.authorization_checker removed from RichText renderer in eZ 3.x)
- field_type.yml: wire @eZ\Publish\API\Repository\PermissionResolver service
- GetAttrExpressionDecorator: replace removed twig_get_attribute() function
  with CoreExtension::getAttribute() (Twig 3 API change)