ditsing/ruaft @ 63dc2b36ac65aea4a1d60087c04119730209c1a2

Jing Yang 63dc2b36ac Some refactoring to remove duplicate code.		5 lat temu
..
src	63dc2b36ac Some refactoring to remove duplicate code.	4 lat temu
Cargo.toml	a0be30f158 Move kvraft to its own sub crate.	4 lat temu