feat: implement comparison operator for the struct Lane

Implement comparison operator for the structs Lane and LaneBoundary.

• Lane
  All properties of the Lane struct will be compared.
  A special handling is the comparison of Lane properties which are std::vector<Lane> (e.g. left_adjacent_lanes and successor_lanes).
  For these lane vectors only the Lane->id of each equivalent vector elements will be compared by the ShallowVectorLaneComparison function.
  A deep comparison would be problematic as the imap standard allows circular references. For example, the left_adjacent_lane of lane=4 is lane=3. And the left_adjacent_lane of lane=3 is lane=4.

• LaneBoundary
  LaneBoundary comparison is based on IDs only (LaneBoundary->id) for now and actual full comparison will come as a separate PR.