Deprecated Vulkan macro

[alexpanter]

Hi, If you are still maintaining this repository:

The macro VK_VERSION_MAJOR (etc.) has been deprecated. You should use this instead: VK_API_VERSION_MAJOR (etc.).

Tutorial page: https://harrylovescode.gitbooks.io/vulkan-api/content/chap03/chap03.html Documentation reference: https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#extendingvulkan-coreversions-versionnumbers