refactor: extract byte operations into dedicated crate

[sonicfromnewyoke]

Problem

there is a part of functionality that is copy/pasted across Pinocchio crates

Summary of Changes

• crate bytes module under pinnochio main crate
• extract

const UNINIT_BYTE: core::mem::MaybeUninit<u8> // ...

fn write_bytes(destination: &mut [core::mem::MaybeUninit<u8>], source: &[u8]) {
  // ...
}

into this module

• import this functionality in token and token-2022 crates instead of having duplicated logic

also will be used in one more crate - #284

cc @febo

[Aursen]

It's nice to have it right there in the Pinocchio crate

[Aursen]

Currently, it should not be in the main crate. Rather, it should be in another crate

[sonicfromnewyoke]

Currently, it should not be in the main crate. Rather, it should be in another crate

im thinking maybe it worth to get rid of those helpers at all and use core::ptr::copy_nonoverlapping

[Aursen]

Currently, it should not be in the main crate. Rather, it should be in another crate

im thinking maybe it worth to get rid of those helpers at all and use core::ptr::copy_nonoverlapping

Yeah make sense. I don't know the opinion of @febo on it