Added allow lateral change to path control unit when routing

MantleAPI/include/MantleAPI/Traffic/control_strategy.h

@@ -142,8 +142,9 @@ struct FollowRouteControlStrategy : public ControlStrategy
   {
     movement_domain = MovementDomain::kLateral;
     type = ControlStrategyType::kFollowRoute;
-  }
 
+  }
+  bool allow_lateral_change {true};
   std::vector<mantle_api::Vec3<units::length::meter_t>> waypoints;
 };