Destroy debug callback (Fixes #15)
Destroy debug callback (Fixes #15)

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