About

Let's add RVV optimized versions of

SIMD versions exist for other architectures but not yet for riscv64.

Dependency
Upstreaming	ONGOING	IndexByte https://go-review.googlesource.com/c/go/+/648856 Equal https://go-review.googlesource.com/c/go/+/646736/6 Comapre https://go-review.googlesource.com/c/go/+/646737/6 IndexBody https://go-review.googlesource.com/c/go/+/659915 Count https://go-review.googlesource.com/c/go/+/657036
Upstream version
Contacts	@Ludovic Henry

LR_02_042: Accelerate bytealg with RVV