Add simple dummy shaders
Change shader loader class to use core functionality (so that it can cope with modern GLSL #versions)
Add more simple shaders, and cmake copy command so that they end up in the same dir as the exe
Add multi-pass rendering pipeline to VTK and start using vtkSaliencyPass
Start to modify Saliency Pass to work as my external render pipeline
THANKS BERNHARD! (pass through shader now works)