Code cleanup, refactoring
Code cleanup, refactoring

SaschaWillems/Vulkan,grim210/Vulkan,ming4883/Vulkan,jpbruyere/Vulkan,grim210/Vulkan,ming4883/Vulkan,SaschaWillems/Vulkan,SaschaWillems/Vulkan,jpbruyere/Vulkan,SaschaWillems/Vulkan,ming4883/Vulkan,SaschaWillems/Vulkan