WIP INTL-50 PT translation and new files

indra/newview/skins/default/xui/pt/floater_about.xml

indra/newview/skins/default/xui/pt/floater_buy_contents.xml

indra/newview/skins/default/xui/pt/floater_customize.xml

.../newview/skins/default/xui/pt/floater_device_settings.xml

...a/newview/skins/default/xui/pt/floater_import_collada.xml

...ew/skins/default/xui/pt/floater_inventory_view_finder.xml

indra/newview/skins/default/xui/pt/floater_model_preview.xml

indra/newview/skins/default/xui/pt/floater_model_wizard.xml

...wview/skins/default/xui/pt/floater_preview_classified.xml

indra/newview/skins/default/xui/pt/floater_preview_event.xml

...ewview/skins/default/xui/pt/floater_price_for_listing.xml

indra/newview/skins/default/xui/pt/floater_sound_devices.xml

indra/newview/skins/default/xui/pt/floater_statistics.xml

indra/newview/skins/default/xui/pt/floater_tools.xml

indra/newview/skins/default/xui/pt/menu_inventory_add.xml

...w/skins/default/xui/pt/menu_model_import_gear_default.xml

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

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

indra/newview/skins/default/xui/pt/panel_friends.xml

...newview/skins/default/xui/pt/panel_preferences_colors.xml