PIM-1393 : move variant group to product group folders for pages and
scenario, update also the fixtures context to deal with generic groups
PIM-1393 : Rename and fix browse product groups scenario
PIM-1393 : move and fix delete product group scenario
PIM-1393 : fix browse products in variant group scenario
PIM-1393 : fix scenaio that check filter products in a group
PIM-1393 : fix sort scenarios
PIM-1393 : fix create variant scenario