vinyl: xxhash-r39 AVX512DQ implementation

[jvarela-jump]

Combining 3 commits into 1:

commit 29c44c091d476de0b55a115a886df5ec608435e2
Author: phtaffet-jump <[email protected]>
Date:   Fri Nov 7 13:41:02 2025 -0600

    hash_avx512dq: switch masking method

commit 2899e97ebd452deafaa93a69cdf0f63fb8f368b8
Author: jvarela-jump <[email protected]>
Date:   Tue Nov 11 21:30:54 2025 +0000

    batch integration in snapwh

commit 90ba16e8a174bbb95e36f9aa4b2f86eae08f4b61
Author: Richard Patel <[email protected]>
Date:   Thu Nov 6 06:53:23 2025 +0000

    vinyl: xxhash-r39 AVX512DQ implementation

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.075462 s	0.075086 s	-0.498% ✅
backtest mainnet-368528500-perf snapshot load	3.293 s	3.183 s	-3.340% ✅
backtest mainnet-368528500-perf total elapsed	75.46196 s	75.086321 s	-0.498% ✅
firedancer mem usage with mainnet.toml	996.14 GiB	996.14 GiB	0.000% ✅

[ripatel-fd]

Maybe would change commit author to Philip

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.075672 s	0.075347 s	-0.429% ✅
backtest mainnet-368528500-perf snapshot load	3.173 s	3.196 s	0.725% ✅
backtest mainnet-368528500-perf total elapsed	75.671575 s	75.347172 s	-0.429% ✅
firedancer mem usage with mainnet.toml	996.14 GiB	996.14 GiB	0.000% ✅