message: using std::abs vor frenet comparism of preceding agent
diff: @@ -245,7 +245,7 @@ FrontRearAgents World::GetAgentFrontRearForId(
  FrenetPosition frenet_other(it->second->GetCurrentPosition(), center_line);
  float width = lane_corridor->GetLaneWidth(it->second->GetCurrentPosition());
  - if (abs(frenet_other.lat) > width / 2) {
  + if (std::abs(frenet_other.lat) > width / 2) {
  // agent seems to be not really in same lane
  continue;
  }
  