Add support for ERC-2304 (multichain)

[SamsungGalaxyPlayer]

References:

• https://eips.ethereum.org/EIPS/eip-2304
• https://github.com/ensdomains/address-encoder

Ideally, this package could decode the addresses of different asset types as well. Typescript/Javascript code exists for reference.

Use-case: a wallet needs to look up the address associated with the ENS name for sending other assets to.