Added SPD into new algorithm module (still WIP)

.gitmodules

config/Sources.cmake

include/vkcv/BlitDownsampler.hpp

include/vkcv/Core.hpp

include/vkcv/DescriptorWrites.hpp

include/vkcv/Downsampler.hpp

include/vkcv/FeatureManager.hpp

include/vkcv/Image.hpp

modules/CMakeLists.txt

modules/algorithm/CMakeLists.txt

modules/algorithm/config/FidelityFX_SPD.cmake

...lgorithm/include/vkcv/algorithm/SinglePassDownsampler.hpp

modules/algorithm/lib/FidelityFX-SPD

...es/algorithm/src/vkcv/algorithm/SinglePassDownsampler.cpp

modules/material/include/vkcv/material/Material.hpp

modules/material/src/vkcv/material/Material.cpp

modules/scene/src/vkcv/scene/Scene.cpp

modules/shader_compiler/include/vkcv/shader/GLSLCompiler.hpp

modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp

modules/upscaling/src/vkcv/upscaling/FSRUpscaling.cpp