First iteration of new question flow

frontend/src/metabase-lib/lib/metadata/Metric.js

frontend/src/metabase/lib/urls.js

...tend/src/metabase/new_query/components/NewQueryOption.jsx

frontend/src/metabase/new_query/containers/NewQuery.jsx

...end/src/metabase/new_query/containers/NewQueryOptions.jsx

frontend/src/metabase/new_query/containers/Start.jsx

frontend/src/metabase/new_query/router_wrappers.js

frontend/src/metabase/new_query/selectors.js

frontend/src/metabase/query_builder/actions.js

...c/metabase/query_builder/components/NativeQueryEditor.jsx

...nd/src/metabase/query_builder/containers/QueryBuilder.jsx

frontend/src/metabase/reducers-main.js

frontend/src/metabase/routes.jsx