Reduce copying in API parameter constructors

When using non-default constructors for the API parameter classes,
vector arguments like coordinates and hints are copied at least once
(twice when passed as lvalue arguments).

Enable perfect forwarding of BaseParameter arguments and
pass-by-value in the constructor that uses the argument. This
ensures we copy at most once (zero for rvalue arguments).

include/engine/api/match_parameters.hpp

@@ -68,8 +68,11 @@ struct MatchParameters : public RouteParameters
     }
 
     template <typename... Args>
-    MatchParameters(std::vector<unsigned> timestamps_, GapsType gaps_, bool tidy_, Args... args_)
-        : MatchParameters(std::move(timestamps_), gaps_, tidy_, {}, std::forward<Args>(args_)...)
+    MatchParameters(const std::vector<unsigned> &timestamps_,
+                    GapsType gaps_,
+                    bool tidy_,
+                    Args &&... args_)
+        : MatchParameters(timestamps_, gaps_, tidy_, {}, std::forward<Args>(args_)...)
     {
     }
 
@@ -77,8 +80,8 @@ struct MatchParameters : public RouteParameters
     MatchParameters(std::vector<unsigned> timestamps_,
                     GapsType gaps_,
                     bool tidy_,
-                    std::vector<std::size_t> waypoints_,
-                    Args... args_)
+                    const std::vector<std::size_t> &waypoints_,
+                    Args &&... args_)
         : RouteParameters{std::forward<Args>(args_)..., waypoints_}, timestamps{std::move(
                                                                          timestamps_)},
           gaps(gaps_), tidy(tidy_)