Added module for post-processing effects and moved bloom with lens flares to it

Doxyfile

include/vkcv/Core.hpp

modules/CMakeLists.txt

modules/effects/CMakeLists.txt

modules/effects/README.md

...les/effects/include/vkcv/effects/BloomAndFlaresEffect.hpp

modules/effects/include/vkcv/effects/Effect.hpp

modules/effects/shaders/bloomDownsample.comp

modules/effects/shaders/bloomFlaresComposite.comp

modules/effects/shaders/bloomUpsample.comp

modules/effects/shaders/lensFlares.comp

modules/effects/src/vkcv/effects/BloomAndFlaresEffect.cpp

modules/effects/src/vkcv/effects/Effect.cpp

projects/particle_simulation/CMakeLists.txt

projects/particle_simulation/shaders/bloom/composite.comp

projects/particle_simulation/shaders/bloom/downsample.comp

projects/particle_simulation/shaders/bloom/lensFlares.comp

projects/particle_simulation/shaders/bloom/upsample.comp

projects/particle_simulation/src/BloomAndFlares.cpp

projects/particle_simulation/src/BloomAndFlares.hpp