add a toolkit function to find lanes to the left/right of turn lanes

include/engine/guidance/assemble_steps.hpp

@@ -79,7 +79,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                               std::vector<bool>({true}),
                               Intersection::NO_INDEX,
                               0,
-                              util::guidance::LaneTupel(),
+                              util::guidance::LaneTuple(),
                               {}};
 
     if (leg_data.size() > 0)
@@ -227,7 +227,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
         std::vector<bool>({true}),
         0,
         Intersection::NO_INDEX,
-        util::guidance::LaneTupel(),
+        util::guidance::LaneTuple(),
         {}};
 
     BOOST_ASSERT(!leg_geometry.locations.empty());

include/engine/guidance/route_step.hpp

@@ -39,7 +39,7 @@ struct Intersection
     std::size_t out;
 
     // turn lane information
-    util::guidance::LaneTupel lanes;
+    util::guidance::LaneTuple lanes;
     extractor::guidance::TurnLaneDescription lane_description;
 };
 
@@ -50,7 +50,7 @@ inline Intersection getInvalidIntersection()
             {},
             Intersection::NO_INDEX,
             Intersection::NO_INDEX,
-            util::guidance::LaneTupel(),
+            util::guidance::LaneTuple(),
             {}};
 }