proposal: stabilize std/bytes

[iuioiua]

This is the first proposal to stabilize a package within the Standard Library, so let's aim to improve the process. This process depends on first fully transferring the Standard Library to JSR. This issue is meant for tracking and discussing making the package stable.

Requirements:

• Approved by four members of the internal team. There must be consensus that the API design is satisfactory and unlikely to change in the future.
• 100% documented, passing deno doc --lint checks and adhering to the documentation guidelines.
• Maximum possible test coverage
• No open issues or pull requests that might lead to breaking changes. For example, issues that suggest new non-breaking features are fine to exist at stabilization.

Blockers:

• bytes/equals incorrectly handles subarrays #3603