[#106] Add motion vector max and neighbourhood max options for motion blur

.../indirect_dispatch/resources/shaders/gammaCorrection.comp

projects/indirect_dispatch/resources/shaders/mesh.frag

projects/indirect_dispatch/resources/shaders/mesh.vert

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

.../indirect_dispatch/resources/shaders/motionVectorMax.comp

...patch/resources/shaders/motionVectorMaxNeighbourhood.comp

projects/indirect_dispatch/src/App.cpp

projects/indirect_dispatch/src/App.hpp

projects/indirect_dispatch/src/AppSetup.cpp

projects/indirect_dispatch/src/AppSetup.hpp