GitLab

[CHANGE] add a pointer to WModule to dataset tree items, this way we can directly access the properties of a dataset in the datasetbrowser

[FIX] made it compile on mac by decoupling gui and graphics engine from kernel. Now only kernel knows graphics eginen and qtgui knows kernel. kernel knows gui. qtgui knows gui.

It just compiles ... it does not work yet.

- Moved GUI initialization to Kernel
- Integrated graphics engine into Kernel
- Integrated test Module into Kernel
- Added multithreading for Modules, graphics Engine and GUI
- Temporarily disabled WOptionHandler Code

- added basic graphics engine
- added basic class stubs for Kernel, Modules

still have to change classname prefix from B to W

 * Outsourced the QApplication to QT GUI where it belongs
 * Outsourced GLEW to GraphicsEngine's CMakeLists.txt
 * Added FindGLEW module

Testing kick-off. In order to use testing please install CxxTest locally to your host, see IntegrateCxxTestInCMakeProject for a minimal example.