[#55] Add ability to create image with mip chain

include/vkcv/Core.hpp

include/vkcv/Image.hpp

projects/voxelization/src/Voxelization.cpp

projects/voxelization/src/main.cpp

src/vkcv/Core.cpp

src/vkcv/Image.cpp

src/vkcv/ImageLayoutTransitions.cpp

src/vkcv/ImageManager.cpp

src/vkcv/ImageManager.hpp