Make DataSelector load metadata on demand (#11809)

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

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

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

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

frontend/src/metabase-lib/lib/queries/NativeQuery.js

frontend/src/metabase-lib/lib/queries/Query.js

frontend/src/metabase-lib/lib/queries/StructuredQuery.js

...tabase/admin/datamodel/components/database/ColumnItem.jsx

...min/datamodel/components/database/MetadataTablePicker.jsx

frontend/src/metabase/admin/permissions/selectors.js

frontend/src/metabase/components/AccordionList.jsx

frontend/src/metabase/entities/databases.js

frontend/src/metabase/entities/schemas.js

frontend/src/metabase/lib/permissions.js

frontend/src/metabase/lib/urls.js

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

frontend/src/metabase/query_builder/actions.js

...nd/src/metabase/query_builder/components/DataSelector.jsx

.../src/metabase/query_builder/components/GuiQueryEditor.jsx

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