Add compute shader derivatives sample for Vulkan extension#1421

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gpx1000 wants to merge 10 commits intoKhronosGroup:mainfrom

gpx1000:VK_KHR_compute_shader_derivatives

Commits on Oct 17, 2025

Add compute shader derivatives sample for Vulkan extension
gpx1000
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Commits on Oct 19, 2025

- Add UI overlay to display compute shader derivative results
gpx1000
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Commits on Jan 7, 2026

Support both quad and linear derivative group modes in compute shader derivatives sample
gpx1000
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Add screenshot to compute shader derivatives sample README
gpx1000
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Fix code formatting and alignment in compute shader derivatives sample
gpx1000
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