Merge branch 'bug-15885-convert-utilities-to-external-projects'
- bug-15885-convert-utilities-to-external-projects: Implicitly add a CppMicroServices dependency to all modules. Add the MITK binary directory as include dir to all modules. Some module dependency and include directory cleanup. Fixed Qwt dependent code to compile against Qwt 6.1.0. Update to tinyxml 2.6.2, Qwt 6.1.0 and Qxt 0.6.2 as external projects. Converted Utilities/glew to an external project. Updated to version 1.10.0. Removed unused pic2vtk and vecmath utility libraries. Converted Utilities/ann to an external project. Updated to version 1.1.2. Fixed missing CMake variable expansion.