rusty_erasure-accel 0.4.0

SIMD kernels for rusty_erasure: x86-64 SSSE3/AVX2 nibble tables and AVX2-GFNI affine transforms, aarch64 NEON, and wasm SIMD128. The workspace's only unsafe crate — every kernel gated byte-identical against the safe scalar oracle on every architecture. MIT OR Apache-2.0.