Added RouteLeg (declaration + tests) + comments
Added Route (declarations + tests) + comments
Added FirectionsEventArgs (declarations + tests) + comments
Added WaypointOptions (declarations + tests) + comments
Added LocationDisambiguationSuggestion (declarations + tests) + comments
Added Disambiguation (declarations + tests) + comments
Added Waypoint, WaypointEventArgs (declarations + tests) + comments. Changed WaypointOptions arguments to be optional.
Added WaypointEventArgs tests.