CT-575 WIP IT translation for set16 for Viewer 2.1.1

.../newview/skins/default/xui/it/floater_preview_gesture.xml

indra/newview/skins/default/xui/it/floater_world_map.xml

indra/newview/skins/default/xui/it/menu_viewer.xml

indra/newview/skins/default/xui/it/notifications.xml

indra/newview/skins/default/xui/it/panel_group_notices.xml

indra/newview/skins/default/xui/it/panel_group_roles.xml

.../newview/skins/default/xui/it/panel_preferences_sound.xml

...a/newview/skins/default/xui/it/panel_teleport_history.xml

indra/newview/skins/default/xui/it/sidepanel_item_info.xml

indra/newview/skins/default/xui/it/strings.xml