This adds a new mode to rotate the camera towards the route while driving.
This is done by looking ahead X number of seconds along the current route,
up to the next turn, and calculating the angle between the current position
and then.
Squashed commits:
[drape] Add bearing calculation via route lookahead while navigating
[drape] Extract NavigationContext from OnLocationUpdate params
[drape] Increase rotation animation duration during navigation
[drape] Seperate route and compass rotation into two modes
[drape] Reduce route lookahead maximum to 25 seconds
[drape] Fix case where rotation was incorrectly considered invalid
[drape] Make FollowAndRotateRoute mode only available during driving navigation
[drape] Rewrite FollowedPolyline::GetLookaheadPoint
[drape] Cleanup
Signed-off-by: Leonardo Bishop <me@leonardobishop.net>
