Add button to reset settings

...tend/src/metabase/admin/datamodel/containers/FieldApp.jsx

...se/admin/settings/components/widgets/FormattingWidget.jsx

.../src/metabase/visualizations/components/ChartSettings.jsx

...etabase/visualizations/components/ChartSettingsWidget.jsx

...src/metabase/visualizations/components/ColumnSettings.jsx

frontend/src/metabase/visualizations/lib/settings.js

frontend/src/metabase/visualizations/lib/settings/column.js

frontend/src/metabase/visualizations/lib/settings/nested.js

...src/metabase/visualizations/lib/settings/visualization.js

frontend/test/visualizations/lib/settings.unit.spec.js