feat(api): Implement Ed25519-BIP32

[bkioshn]

Description

Implement Ed25519-BIP32

Related Issue(s)

Closes #101

Description of Changes

Implementation of BIP39

• Converting Mnemonic and optional passphrase to XPrv SLIP-0023.
• Generate a new mnemonic from a given mnemonic length, prefix, and language
  • Prefix should be words in BIP39 dictionary and should not be more than 3 words. eg. prefix: good, sun
    Both of the implementations should support mnemonic in various languages including - English, Chinese-simplified, Chinese-traditional, Czech, French, Italian, Japanese, Korean, Spanish.
• Tests are provided

Implementation of BIP32-Ed25519

• Getting the public key from an extended private key.
• Signing a data
• Check the sign data
• Deriving new private key from an extended private key given a valid derivational path
• Tests are provided

Cryptography State Management

• Map of app name to resources
• Tests are provided (Thread safe check)

Test vectors uses in this implementation

• bip32-ed25519 https://cips.cardano.org/cip/CIP-0011
• mnemonic generated using https://iancoleman.io/bip39
• Japanese mnemonic from https://github.com/rust-bitcoin/rust-bip39/blob/master/src/lib.rs

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

done

[stevenj]

LGTM