crypto-sodium-0.0.4.0: CHANGELOG.md

# Changelog

## Unreleased

### Added

* `sodiumInit`
* Random bytes generation: `Crypto.Random`
* Key derivation: `Crypto.Key.derive` and `Crypto.Key.rederive`
* MAC: `Crypto.Mac`, `Crypto.Mac.Lazy`
* Random nonce generation: `Crypto.Nonce`
* Public-key signatures: `Crypto.Sign`
* Keypair generation from seed: `Crypto.Sign` and `Crypto.Encrypt.Public`