refactoring and looking for OpenGL bug...

CMakeLists.txt

src/application.cpp

src/application.h

src/constants.h

src/main.cpp

src/rendering/Drawable.cpp

src/rendering/Drawable.h

src/rendering/camera.cpp

src/rendering/camera.h

src/scene.cpp

src/scene.h

src/simulation/particle.cpp

src/simulation/particle.h

src/simulation/pbd/pbd_simulation.cpp

src/simulation/pbd/pbd_simulation.h

src/simulation/sph/sph_simulation.cpp

src/simulation/sph/sph_simulation.h

src/utility/InputHandler.cpp

src/utility/InputHandler.h