Use VieportTransition instead of DefaultViewTransition in MapViewportState methods

[JolanDaumas]

New Feature

Add the possibility to use a VieportTransition when using MapViewportState methods instead of a DefaultViewTransition only.

public fun transitionToOverviewState(
    overviewViewportStateOptions: OverviewViewportStateOptions,
    defaultTransitionOptions: DefaultViewportTransitionOptions = DefaultViewportTransitionOptions.Builder()
      .build(), // Here, use a ViewportTransition
    completionListener: CompletionListener? = null
  ) 

Why

In map V10, we could specify a ViewportTransition when we wanted to have a transition to a certain state.

However, in V11, using MapViewportState, we cannot specify a ViewportTransition but only a DefaultViewportTransition.

We cannot do an immediate transition when we don't want to have an animation.

We could possibility have more use cases unlock by using a ViewportTransition and not only a DefaultViewTransition