PIM-1891 : add flexible single option formatter
PIM-1891 : add multi options formatter
PIM-1891 : add price formatter
PIM-1891 : add metric formatter
PIM-1891 : fix image formatter
PIM-1891 : add only default case in flexible field formatter
PIM-1891 : fix flexible twig formatter
PIM-1891 : add a dedicated twig for metric field
PIM-1891 : declare new formatters
PIM-1891 : introduce a dedicated file to configure registry and update
attribute types configurations to use relevant formatters