Merge branch 'develop' into 96-dokumentation-vervollstandigen

include/vkcv/Core.hpp

modules/gui/src/vkcv/gui/GUI.cpp

src/vkcv/BufferManager.cpp

src/vkcv/Core.cpp

src/vkcv/ImageLayoutTransitions.cpp

src/vkcv/ImageManager.cpp

src/vkcv/ImageManager.hpp