Adjusted header and function names for multisampling

config/Sources.cmake

include/vkcv/GraphicsPipelineConfig.hpp

include/vkcv/Image.hpp

include/vkcv/Multisampling.hpp

include/vkcv/PassConfig.hpp

projects/voxelization/src/ShadowMapping.cpp

src/vkcv/GraphicsPipelineManager.cpp

src/vkcv/ImageConfig.cpp

src/vkcv/ImageManager.cpp

src/vkcv/ImageManager.hpp

src/vkcv/Multisampling.cpp

src/vkcv/PassManager.cpp