Summary: First cut implementation of show/hide subcomponents inside BabbagePackage
Summary: First cut implementation of show/hide subcomponents inside BabbagePackage

Changesets:
- Add the toggles to top of components; no style for now
- Show the components as when the view state change; no need to unload; load in background
- Added method to toggle visibility view state
- TODO: Add style for hide/show toggle ...

leowmjw/vue-babbageui-demo,leowmjw/vue-babbageui-demo