Pull request #254: Develop

Merge in VECTO/vecto-dev from VECTO/mq_vecto-dev:develop to develop

* commit '29c43cfd':
  updating vif in testfiles to new schema version
  updating mockup classes
  set input data in vecto run data instance, correct writing airdrag in vif
  correcting path in resource file
  correct expected value in testcase
  make input parameter to run simulation in multistep-bus simulation optional. default: run simulation
  removing unnecessary import
  disabling testcases for disabled vehicle groups
  disabling vehicle groups 51 and 52 in segment table