[Feature] Advanced navigation method: ResetStackAndPush

[BurkusCat]

Is your feature request related to a problem? Please describe.
This will be the foundation of absolute navigation needed for #1. This would be a method that would clear any pages I already have and push a new page on top. An example might be when you are finishing a registration/login flow and want to move to the main part of an application.

Describe the solution you'd like
A new method that allows for absolute navigation.

Describe alternatives you've considered
N/A

Proposed APIs
If possible, try to propose how the API might look. For example:

// INavigationService
Task ResetStackAndPush<T>()
            where T : Page

Task ResetStackAndPush<T>(NavigationParameters parameters)
            where T : Page

Additional context
Implementation thoughts:

• Should OnNavigatedFrom be called for all pages that were removed?
  • What does Shell do?
  • Only the top page?
  • If all pages, what order should OnNavigatedFrom be called for them all?
• It is probably a good idea to have an internal ResetStack method that this new public method would use