ViewModels as resources

There are scenarios in which it could be handly to have the current View ViewModel being registered also as a View resource. ViewModels can be exposed as a View resource via the ExposeViewModelAsStaticResource runtime convention or by applying the ExposeViewModelAsStaticResource attribute to the ViewModel class definition.

It's possible to change the way resource keys are generated for exposed ViewModels via the GenerateViewModelStaticResourceKey convention