Pull request #136: Feature/VECTO-1460 apt n gearbox

Merge in VECTO/vecto-dev from VECTO/mk_vecto-dev:feature/VECTO-1460-apt-n-gearbox to develop

* commit '7d74524a': (25 commits)
  APTNGearbox: removed unnecessary code.
  Added Case for APTN for ResponseUnderload in DrivingActionBrake to try again searching a suitable braking power.
  implemented overrides in APTN for easier debugging
  Interpolate2D: removed stopwatch
  Added that HybridStrategy does not use VelocityDropData if its not valid (like in APT-N gearboxes: they have no traction interruption)
  Improved check for APT-N Gearbox when used in SimplePowertrain
  code formatting
  PowertrainBuilder.GetShiftStrategy: Check for JobType for APTN Shift Strategy
  refactored return of Gearbox.Request for easier debugging
  reformated code for easier debugging
  added APTN in PowertrainBuilder.GetGearBox
  minor refactoring for readability
  GearboxType formatted Names of GearboxType Enum
  GearboxForm: APT-N only visible in Engineering Mode
  Added APTN in Powertrainbuilder.GetShiftStrategy again (was missing after merge)
  updated Gearbox GUI Editor (gearboxtype width)
  removed debug output
  updated APTNGearbox
  bugfix: ICE-EngineInfo for PEVs was null
  APTN Gearbox now directly derived from Gearbox
  ...