Merge pull request #371 in VECTO/vecto-sim from...

Merge pull request #371 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-443-skipgears-not-working-correctly to develop

* commit '004901de':
  gearbox: do no reduce engage time if it is already set
  reduce velocity for disengaging to 10km/h
  set _lastenginePower in case it has not been set (switching from double-clutch to idle while disengaged
  shift polygon test: write shift polygon points
  adapt testcase: fill required field
  correction of shift strategy (AM) - skip gears
  reduce min. time between gearshifts to 1.5s (declaration mode)