Merge pull request #75 in VECTO/vecto-sim from ~EMKRISPMI/vecto-sim:private/graph-writer to develop

* commit '0c55b848':
  graph request size
  renamed driver strategy test cases to Coach... and Truck...
  disabled the graphwriter for faster tests
  uncommented graph writing in many testcases (and corrected the errors)
  added graph writer to coach driver strategy tests, added target speed in graph
  added graph writer to truck tests