Add ENS exports packetToBytes and parseAvatarRecord

[wottpal]

• Add new exports packetToBytes and parseAvatarRecord
• Slightly improved comments of packetToBytes and parseAvatarRecord
• Added root export (src/index.ts) for normalize which was missing (don't know if this was intended)
• Changeset

@jxom @tmm Also happy to add related documentation pages, but had the feeling it's good as it is as they are quite niche functions and have an already well documented behavior within the ENS docs (which are linked). :)

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PR-Codex overview

This PR focuses on exporting ENS-related utility functions packetToBytes and parseAvatarRecord.

Detailed summary

• Exported packetToBytes and parseAvatarRecord utility functions for ENS-related operations.
• Added packetToBytes function to encode a DNS packet into a ByteArray.
• Added parseAvatarRecord function to parse an ENS avatar record.
• Updated exports in index.ts to include the new utility functions.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 8f2dcdc

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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viem	Patch

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