Use undefined initial image layout (refs #187), request coherent host visible memory types
Use undefined initial image layout (refs #187), request coherent host visible memory types

jpbruyere/Vulkan,SaschaWillems/Vulkan,martty/Vulkan,ming4883/Vulkan,jpbruyere/Vulkan,SaschaWillems/Vulkan,grim210/Vulkan,ming4883/Vulkan,SaschaWillems/Vulkan,dreadwords/Vulkan,ming4883/Vulkan,grim210/Vulkan,SaschaWillems/Vulkan,SaschaWillems/Vulkan