graphics/libhighway 1.4.0 NetBSD

Highway is a C++ library for SIMD (Single Instruction, Multiple Data), i.e. applying the same operation to 'lanes'.

## Why Highway?

• more portable (same source code) than platform-specific intrinsics,
• works on a wider range of compilers than compiler-specific vector extensions,
• more dependable than autovectorization,
• easier to write/maintain than assembly language,
• supports runtime dispatch,
• supports variable-length vector architectures.

## Current status

Supported targets: scalar, SSE4, AVX2, AVX-512, NEON (ARMv7 and v8), WASM SIMD. Ports to RVV and SVE/SVE2 are in progress.