perf(codec): improve bytify and hexify perf

[homura]

Description

A performance issue was found in #579

Type of change

• Refactor (non-breaking change)

How Has This Been Tested?

benchmark.js

import Benchmark from "benchmark";
import { randomBytes } from "node:crypto";
import bytesOld from "./lib/bytes.js";
import bytesNew from "./lib/bytes-new.js";

const bytesData = randomBytes(10000);
const hexData = bytesNew.hexify(bytesData);

const suite = Benchmark.Suite();

suite
  .add("hexify-old", () => {
    bytesOld.hexify(bytesData);
  })
  .add("hexify-new", () => {
    bytesNew.hexify(bytesData);
  })
  .add("bytify-old", () => {
    bytesOld.bytify(hexData);
  })
  .add("bytify-new", () => {
    bytesNew.bytify(hexData);
  })
  .on("cycle", (event) => {
    console.log(String(event.target));
  })
  .run();

➜  codec git:(perf-bytes) ✗ bun run bench.mjs
hexify-old x 1,328 ops/sec ±0.38% (95 runs sampled)
hexify-new x 4,606 ops/sec ±0.33% (95 runs sampled)
bytify-old x 1,192 ops/sec ±0.51% (95 runs sampled)
bytify-new x 4,597 ops/sec ±0.29% (96 runs sampled)
➜  codec git:(perf-bytes) ✗ clear
➜  codec git:(perf-bytes) ✗ bun run bench.mjs
hexify-old x 1,325 ops/sec ±0.36% (95 runs sampled)
hexify-new x 4,524 ops/sec ±0.30% (97 runs sampled)
bytify-old x 1,184 ops/sec ±0.42% (96 runs sampled)
bytify-new x 4,547 ops/sec ±0.31% (95 runs sampled)
➜  codec git:(perf-bytes) ✗ node bench.mjs
hexify-old x 2,079 ops/sec ±0.75% (96 runs sampled)
hexify-new x 21,727 ops/sec ±1.01% (93 runs sampled)
bytify-old x 2,320 ops/sec ±0.29% (97 runs sampled)
bytify-new x 2,440 ops/sec ±0.38% (98 runs sampled)
➜  codec git:(perf-bytes) ✗ node bench.mjs
hexify-old x 2,092 ops/sec ±0.74% (93 runs sampled)
hexify-new x 22,277 ops/sec ±0.49% (99 runs sampled)
bytify-old x 2,319 ops/sec ±0.39% (97 runs sampled)
bytify-new x 2,467 ops/sec ±0.17% (99 runs sampled)
➜  codec git:(perf-bytes) ✗ node --version
v21.3.0
➜  codec git:(perf-bytes) ✗ bun --version    
1.0.15

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[codecov]

Codecov Report

Merging #580 (80ef246) into develop (8424b07) will decrease coverage by 2.35%.
The diff coverage is 96.93%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #580      +/-   ##
===========================================
- Coverage    87.07%   84.73%   -2.35%     
===========================================
  Files          116      116              
  Lines        23453    23506      +53     
  Branches      2380     2262     -118     
===========================================
- Hits         20421    19917     -504     
- Misses        2988     3546     +558     
+ Partials        44       43       -1     

Files	Coverage Δ
packages/codec/src/bytes.ts	98.43% <97.22%> (-0.60%)	⬇️
packages/codec/src/utils.ts	94.53% <96.77%> (-1.47%)	⬇️

... and 8 files with indirect coverage changes

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