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).
- Adding sides parameter into base parameters, it can take the values SIDE, OPPOSITE or DEFAULT.
- Adding url parser for "sides" parameter, url values are "s" for SIDE, "o" for OPPOSITE and "d" for DEFAULT, example : "sides=s;s".
- Checking parameters, if "sides" parameter is used, the number of parameter is the same as number of location.
- Create a phantom to start at side driving or Opposite side driving.
Signed-off-by: FILLAU Jean-Maxime <jean-maxime.fillau@mapotempo.com>
Adds an `generate_hints=false` option which lets us skip generating and
emitting hints for Waypoints. This can be used to decrease the response
size when the user does not need hints anyway.
We should think about making `false` the default here in v6.
