Merge pull request #266 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-346-update-generic-vehicles to develop

* commit '9349886a':
  removing mod-files and sum-files from repo
  handle the case when a file can't be opened
  adapt engine fld and map to technical annex
  make torque converter less efficient
  removing old generic vehicles
  added citybus vehicle with AT Gearbox
  adding generic vehicle (Coach) with AAUX
  bugfix: peaks in fuel consumption due to resetting total FC during simulation (init gear)
  corrected ouput to match unit in column header
  bugfix: fuel density
  New generic vehicle for PTO Cycle
  fix: relative path for aaux file
  remove cast to single for gearbox ration in list-view
  save engineering files in engineering mode (gbx)
  adding new generic vehicles for enineering & declaration mode: Truck Class 2 & Class 5
  removed no-longer needed properties
  removed 'skip gears' and 'early upshift' from input data and component data. only depends on shift stragety.
  Adding P_add input to GUI and JSON format
  more clear implementation of wheels class (confusion about dynamic tyre radius and wheel diameter), extending testcase