mapbox-navigation-android

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MapboxViewportDataSource's overview state only frames the current leg of the route, which means that in case of multi-leg route, a portion of the route (everything besides the current leg) will not be framed.

There's a request to provide an option to frame the full route at all times.

My initial idea is to introduce an enum, sealed class or a similar interface that allows to select the overview mode:

sealed class OverviewMode {
  object CurrentLeg: OverviewMode
  object Full: OverviewMode
}

and accept it in MapboxViewportDataSourceOptions#overviewFrameOptions. Depending on the mode, we'll either frame the full route or the current leg.

cc @MaximAlien for iOS parity

Created ticket for iOS here: https://github.com/mapbox/mapbox-navigation-ios/issues/3686.