Switch from push constants to storage buffers #53

Job	Run time
xtask test & lint	3m 58s
lint (cargo-gpu)	3m 59s
lint (spirv-builder)	3m 58s
test (windows-2022, spirv-builder)	3m 53s
test (windows-2022, cargo-gpu)	3m 54s
test (macOS-latest, cargo-gpu)	4m 2s
test (ubuntu-24.04, cargo-gpu)	3m 53s
test (macOS-latest, spirv-builder)	2m 27s
test (ubuntu-24.04, spirv-builder)	1m 45s
test_success	3s
	31m 52s

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