Utils + Hashes

[dangell7]

The utils and hashing features are incomplete. Lots of the functions are commented out.

Review and complete the following from the JS/PY library.

https://github.com/XRPLF/xrpl.js/tree/main/packages/xrpl/src/utils

Utils

• Derive
• GetBalanceChanges
• ParseNFTokenID
• SignPaymentChannelClaim
• String Conversion
• Time Conversion
• VerifyPaymentChannelClaim
• XrpConversion

Hashes

• HashLedger
• HashPrefix
• Hashes
• LedgerSpaces
• Sha512Half