Add read-only max_turn_weight in ProfileProperties

include/extractor/profile_properties.hpp

@@ -1,6 +1,8 @@
 #ifndef PROFILE_PROPERTIES_HPP
 #define PROFILE_PROPERTIES_HPP
 
+#include "util/typedefs.hpp"
+
 #include <algorithm>
 #include <boost/assert.hpp>
 #include <boost/numeric/conversion/cast.hpp>
@@ -66,6 +68,11 @@ struct ProfileProperties
 
     double GetWeightMultiplier() const { return std::pow(10., weight_precision); }
 
+    double GetMaxTurnWeight() const
+    {
+        return std::numeric_limits<TurnPenalty>::max() / GetWeightMultiplier();
+    }
+
     //! penalty to cross a traffic light in deci-seconds
     std::int32_t traffic_signal_penalty;
     //! penalty to do a uturn in deci-seconds