[New Snap] Reef Wallet

[khanti42]

Checklist

All items in the list below needs to be satisfied.

• Is the Snap repository publicly accessible and linked in this ticket: https://github.com/reef-chain/metamask-snap
• Is the Snap distributed on npm and linked in this ticket: https://www.npmjs.com/package/@reef-chain/reef-snap
• Has an audit been performed and the audit report attached or linked in this issue: no audit required as per our requirements. but they do derive keys so we need to ensure that they provide ways for users to recover them.
• Is a complete list of discovered vulnerabilities from the audit documented in this issue?
• For vulnerabilities that have been deemed necessary to be addressed, are the links to the fixes attached to this issue?
• For vulnerabilities that have been deemed not necessary to be addressed, is a reason for each of them documented in this issue?
• The corresponding pull request in this repo has been merged.