major refactoring: use multiple full-load curves, one per gear. introduce vehicle-defined limits and gearbox-defined limits

all test-cases green.

Merge pull request #402 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-487-simulation-aborts-with-max-distance to develop

* commit '84ecdf29':
  move comment
  change check for end of pto cycle. relevant if pto cycle does not start at time 0

Merge pull request #401 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-486-hashing-of-vecto-input-and-output to develop

* commit '43348b37': (28 commits)
  adding comment for XSLT
  fix: xpath query
  polishing commandline tool
  corrected testcase
  indentation, insert correct hashes for components
  adding hashing commandline tool
  adding new project for hashing tool (GUI)
  adding auto-generated versioning
  extending tests
  adding documentation for interface
  changed XSLT transformation to remove namespaces
  adding another testcase
  adding more testcases
  adding more test files
  adding creating hash for component
  adding un-hashed input data
  report a component multiple times if multiple instances exist
  make xml valid
  change wheels on 2. axle
  change reference hash due to changes in xslt transformation
  ...

* commit '116318a3':
  added XML test files for hashing