vulkaninfo: Rewrite instance creation
vulkaninfo: Rewrite instance creation

1) localize `VkPhysicalDeviceSurfaceInfo2KHR (and remove from instance creation)
2) Remove debug callback. We are not even using layers...
3) Enable all supported instance extensions. Close #100.
4) Prettify instance command loader
5) other esthetics
KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools