Add spaceship operator for vk handles

[YaaZ]

Some comparisons rely on implicit conversions (#2001), which do not work when VULKAN_HPP_TYPESAFE_CONVERSION=0 (which is default on 32-bit platforms).
Specifically, compilation fails with VULKAN_HPP_TYPESAFE_CONVERSION=0 and VULKAN_HPP_HAS_SPACESHIP_OPERATOR, because structs try to use the spaceship operator for comparing their member handles.
For instance, vk::PipelineShaderStageCreateInfo:

vulkan/vulkan_structs.hpp(27059): error C2678: binary '<=>': no operator found which takes a left-hand operand of type 'const vk::ShaderModule' (or there is no acceptable conversion)
vulkan/vulkan_structs.hpp(27059): note: could be 'built-in C++ operator<=>(int, int)'
vulkan/vulkan_structs.hpp(27059): note: '<=>': cannot convert argument 1 from 'const vk::ShaderModule' to 'int'
vulkan/vulkan_structs.hpp(27059): note: or       'built-in C++ operator<=>(VkShaderModule, VkShaderModule)'
vulkan/vulkan_structs.hpp(27059): note: '<=>': cannot convert argument 1 from 'const vk::ShaderModule' to 'VkShaderModule'

Note that I did not run the generator - clang-format gave me a crazy diff for some reason, so I patched vulkan_handles.hpp by hand.

[asuessenbach]

Looks good, even with manual adjustments in vulkan.hpp.

Have you used clang-format 21.1.0?

[YaaZ]

No, mine is 18.1.8, gonna update it.

[YaaZ]

Right, 21.1.8 gives a clean diff, thanks.