Address with Base58Check

[wanseob]

Is your feature request related to a problem? Please describe.

By the issue #34, a Zk account will have 64 bytes public address data which is a set of
(P, N) where P is poseidon(p*G, n) and N is n*G. (p is spending key and n is nullifier seed)

In this context, Base58Check is a good option to shorten the address for the readability.

P: 32bytes = poseidon(p*G, n)
N: 32bytes = encode(n*G)
checksum: 4bytes = keccak256(P, N)
totalBytes: 68 bytes = P + N + checksum
address = base58(totalBytes)

Describe the solution you'd like
N/A

Describe alternatives you've considered
Base58 without checksum

Additional context
#34

[wanseob]

closed by #44