Update RegionNavigationRegistrationExtensions.cs

[jpislas]

Allow for registering a view for navigation using type. This method already exists but is currently private. This is existing function so no tests created.

## Description of Change

Make existing function public.

Changed:

• private static IContainerRegistry RegisterForRegionNavigation => public static IContainerRegistry RegisterForRegionNavigation

PR Checklist

• Has tests (if omitted, state reason in description)
• Rebased on top of master at time of PR
• Changes adhere to coding standard

[dansiegel]

@jpislas can you please give us some context on why you feel this is needed as part of the public API?

[jpislas]

@jpislas can you please give us some context on why you feel this is needed as part of the public API?

@dansiegel I register my views using attributes/reflection and don't have access to strongly type them so I end up having to work around it. Its also the way it is set up for standard non region based navigation registration, so it would be consistent with existing functionality. For example:

            if (attribute != null)
            {
                if (attribute.UseRegionNavigation)
                    containerRegistry.RegisterForRegionNavigation(t, attribute.ViewModelType, t.Name);
                else
                    containerRegistry.RegisterForNavigation(t, attribute.ViewModelType, t.Name);
            }