(WinUI3) - Allow creation of project without MVVM toolkit

[Rarisma]

Is your feature request related to a problem? Please describe.

I'd like to create a project using code behind. Sure it's not the best or ideal way but its a lot easier for prototyping.

I've just created a new project and I have a lot of stuff I probably won't use.

Describe the solution you'd like

Just a None or codebehind option alongside the MVVM option when creating a project.

Describe alternatives you've considered

No response

Additional context

No response

Applies to the following platforms:

• [X] WinUI
• [ ] WPF
• [ ] UWP