Merge pull request #398 in VECTO/vecto-sim from...

Merge pull request #398 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-481-integrate-new-xml-schema to develop

* commit '3523283f':
  make engineering xml writing tests work
  make more xml testcases work
  add xpath for component certification number
  adding diagrams illustrating xml schema
  change xsd type namespace
  add certification number as optional attribute for component data
  update declaration sample xml files
  adding XSDs and XMLSpy project
  update parameter list
  adding parameter list
  ignore symlinked directory with XSDs
  adapt reading xml to new schema
  updating sample xml files to new proposal
  updating XSD to latest draft of input/output data
  more explicit exception texts