Add animated Path Configuration property

[leonvogt]

This PR would add the ability to add an animated property to the path configuration, which would allow to disable the default animation when navigating to a path.
It's an effort to add more feature parity with iOS.

[leonvogt]

While working on it, I noticed that the pop animation is still present when navigating back from a path with animated: false.
I was about to change that, but saw that the iOS implementation behaves the same way.

I guess there is an argument for only disabling the push animation and not the pop animation.
But at the same time I think it would be beneficial to have the option to disable both animations.
Depending on the screen, the Android pop animation can be a bit jarring.
Do you have any thoughts on this?

Edit:
While updating the documentation for this change, I've noticed that the explanation for animated also includes "popping":

[...] Specifies whether the navigation should be animated when pushing, popping, or presenting.

Is it possible that the pop animation should not be present with animated: false and it just got lost at some point?