Vulkan: Clean up mul_mm shader #15987
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jeffbolznv
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Sep 14, 2025
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The mul_mm was the first shader I wrote and many of the readability options in GLSL weren't known to me at the time, so in this PR I move all of the dequantization stuff outside of the main file. This makes the shader much easier to work with.
I also did some minor optimizations that I spotted on the way.
It's basically a port of the good changes in #12515, while leaving out the ones that didn't work well.