[#106] Naive motion blur implementation

.../indirect_dispatch/resources/shaders/motionBlurDummy.comp

...ects/indirect_dispatch/resources/shaders/motionVector.inc

projects/indirect_dispatch/resources/shaders/prepass.frag

projects/indirect_dispatch/resources/shaders/skyPrepass.frag

projects/indirect_dispatch/resources/shaders/skyPrepass.vert

projects/indirect_dispatch/src/App.cpp

projects/indirect_dispatch/src/App.hpp

projects/indirect_dispatch/src/AppSetup.cpp

projects/indirect_dispatch/src/AppSetup.hpp