Commit c722e58d1fcb1f3861d4fc7a64e8a3158185409a

Ryan C. Gordon 2017-08-27T23:25:12

vulkan: Include a copy of vulkan.h and vk_platform.h. Now we can provide Vulkan support in the build even if the build box doesn't have a Vulkan SDK, since we dynamically link to the library anyhow.