bip39

This is unmaintained, temporary fork of: https://github.com/rust-bitcoin/rust-bip39/. Its purpose it to create a short-term release on crates.io to facilitate progress on polkadot-sdk. This action was prompted by delays in merging process of:

• https://github.com/rust-bitcoin/rust-bip39/pull/57
• https://github.com/rust-bitcoin/rust-bip39/pull/64

lib.rs:

BIP39 Mnemonic Codes

Library crate implementing BIP39

Test some Japanese language test vectors. For these test vectors, we seem to generate different mnemonic phrases than the test vectors expect us to. However, our generated seeds are correct and tiny-bip39, an alternative implementation of bip39 also does not fulfill the test vectors.