QtIFW

fix autodependency behaviour

  - remove code that autodependency is a real dependency, it was a hack and totaly wrong
  - introduce addDependency() to be able to add these operating system depend, for example you need vcredist to register Qt Simulator under Windows but not under the other OSs(the wrong autodependency was only a hack to allow this)

Change-Id: Iab6adc28d47b42eac1823afe7fe6a8bbfb2b3361
Reviewed-by: Niels Weber <niels.2.weber@nokia.com>
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>