Integrate latest vk.xml changes

[0xcaff]

Overview

Pulls in the vk.xml used in ash 0.38 (https://github.com/KhronosGroup/Vulkan-Headers/blob/38899bf60605f0a2c50f7968e5c4c9826a824683/registry/vk.xml) adding stuff to autogen to get it compiling.

Merge Order

This is ready to merge. It depends on:

1. https://github.com/vulkano-rs/vulkano/pull/2512
2. https://github.com/vulkano-rs/vulkano/pull/2511
3. https://github.com/vulkano-rs/vulkano/pull/2510

all of which are merged.

Changelog

### Additions
- Update vk.xml to [Vulkan-Headers@38899bf](https://github.com/KhronosGroup/Vulkan-Headers/blob/38899bf60605f0a2c50f7968e5c4c9826a824683/registry/vk.xml) to match version used in ash 0.38

[Rua]

Would it be possible to add definitions for the two types you've added to the physical device module? It doesn't have to be documented, but at least give the user the ability to read the property.

[0xcaff]

I've updated it here, https://github.com/vulkano-rs/vulkano/pull/2513/commits/a60ab3a5b57596490c006984542840578d1a2657

How does this look?

[Rua]

I meant defining them using the vulkan_enum! and vulkan_bitflags! macros, following the definitions in the Vulkan spec:

• https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkLayeredDriverUnderlyingApiMSFT.html
• https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkPhysicalDeviceSchedulingControlsFlagsARM.html

[0xcaff]

ahh I see ok good idea, updated!

[Rua]

Thanks!