d6c0d6fee7
Adds a new `widget_preview_scaffold.shard` directory which contains a hydrated `widget_preview_scaffold` template. This will allow for us to write widget tests against the widgets defined in the templates. This PR doesn't add any widget tests and is only adding the ability to run these tests in follow up changes. Fixes https://github.com/flutter/flutter/issues/166416
# Widget Preview Scaffold This project is generated by `flutter widget-preview` and is used to host Widgets to be previewed in the widget previewer.