PIM-1460 : add group type controller
PIM-1460 : add navigation and related acl
PIM-1460 : add group type datagrid manager
PIM-1460 : add form type for group type
PIM-1460 : add group type handler and related form
PIM-1460 : add group type routing and views
PIM-1460 : add translated label to group type
PIM-1460 : add label column
PIM-1420 : add browse group types scenario
PIM-1460 : add scenario for group types filtering
PIM-1460 : add a group types sorting scenario
PIM-1420 : add group type validation, translation messages, and
creation scenario
PIM-1420 : add group type editing scenario
PIM-1460 : add a delete scenario
PIM-1460 : add delete scenario
PIM-1460 : forbid to remove used group type
PIM-1460 : add missing unit test
PIM-1460 : use translated label for group type filter
PIM-1460 : rename variant group manager, update group datagrid to use
only not variant type as filter choices
PIM-1460 : remove useless use statement