Create a series of issues that the community can pickup to help improve the design-time data

[LyalinDotCom]

Multiple members of the UWP/WPF community have agreed to help improve the sample app designed to demonstrate how d: design-time data can be used to visualize various controls and scenarios inside of the XAML designer for both UWP and WPF apps.

The issues I am working to create include:

1. Create a tab control within the UWP app to help us organize content from the WinUI 2.x control set
2. Enhance the UWP app by adding as many of the controls as many sense to visualize in the designers
3. Update the WPF sample to include a simple ViewModel implementation so that if the sample app is run, different data is shown in the running app vs. the design-time view
4. Update the UWP sample to include a simple ViewModel implementation so that if the sample app is run, different data is shown in the running app vs. the design-time view (this should happen after Create a series of issues that the community can pickup to help improve the design-time data #2 is completed)

Bonus:

5. Add another WPF sample that demonstrates d:DataContext implementation using an ViewModel that demonstrates the alternative approach for design-time data
6. Add another WPF sample that demonstrates d:DataContext implementation using an ViewModel that demonstrates the alternative approach for design-time data

Infrastructure:

• Add automated builds to confirm builds don't break (but packaging this app for publish is not useful here)