Merge pull request #393 in VECTO/vecto-sim from...

Merge pull request #393 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-470-add-xml-input-output-functionality to develop

* commit '790d08df':
  change namespace
  allow exporting gearbox and axlegear data as XML from GUI
  add export button to gearbox form (testing)
  make testcase run
  adding xml functionality (export json to xml, run xml jobs) to GUI
  adding XML reading / writing functionality to VectoCore / VectoCoreTest