title: CMake build error: Qt5PrintSupportConfig.cmake missing
body: <p>I am trying to build build a C++ toolkit called MITK with CMake. But I am getting this Qt5 related error. I am using the open source version of Qt 5.7.1. I can't find any file with the name <code>Qt5PrintSupportConfig.cmake</code> inside the Qt5 folder. The closest thing I found was <code>windowsprintersupport.dll</code> inside the folder <code>printsupport</code>. What could be the probem?</p>
  
  <pre><code>CMake Error at C:/Qt5.7.1/5.7/winrt_x64_msvc2015/lib/cmake/Qt5/Qt5Config.cmake:26 (find_package):
  Could not find a package configuration file provided by "Qt5PrintSupport" with any of the following names:
  
      Qt5PrintSupportConfig.cmake
      qt5printsupport-config.cmake
  
  Add the installation prefix of "Qt5PrintSupport" to CMAKE_PREFIX_PATH or
  set "Qt5PrintSupport_DIR" to a directory containing one of the above files.
  
  If "Qt5PrintSupport" provides a separate development package or SDK, be sure it has been installed.
  Call Stack (most recent call first): CMakeLists.txt:211 (find_package)
  </code></pre>