Merge branch '123-refactor-core-api' into 'develop'

include/vkcv/Image.hpp

include/vkcv/Logger.hpp

include/vkcv/Multisampling.hpp

include/vkcv/Pass.hpp

include/vkcv/PassConfig.hpp

include/vkcv/PipelineConfig.hpp

include/vkcv/PushConstants.hpp

include/vkcv/Sampler.hpp

include/vkcv/SamplerTypes.hpp

include/vkcv/ShaderProgram.hpp

include/vkcv/ShaderStage.hpp

include/vkcv/Surface.hpp

include/vkcv/Swapchain.hpp

include/vkcv/SyncResources.hpp

include/vkcv/TypeGuard.hpp

include/vkcv/VertexData.hpp

include/vkcv/VertexLayout.hpp

include/vkcv/Window.hpp

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

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