cardano-crypto-wallet-0.1.0.0: Authenticated v2 envelope for HD wallet keys

Provides authenticated encryption and key derivation for HD wallet keys, using the v2 envelope format: Argon2id key derivation and XChaCha20-Poly1305 AEAD encryption via libsodium. . This package exposes Cardano.Crypto.WalletHD.Encrypted with a pure v2 implementation.