Update libsecp256k1 commit 0fa84f869d51e1b71113d81fcd518ebcee08709a (…

…version 0.3.2) (#38)

[BREAK API] ECDSA.Recoverable to ECDSAWithKeyRecovery & ECDSA.NonReco…

…verable to ECDSA (#34)

[API BREAK] Remove recoverPublicKey from `K1.ECDSA.NonRecoverable.Sig…

…nature` and remove an init from `K1.ECDSA.Recoverable.Signature` (#36)

Add link to documentation hosted by SwiftPackageIndex to README (#32)

Add file '.spi.yml' to let SwiftPackageIndex.com host documentation. (#…

…31)

Generate keys with GYB (#22)

Major refactor / rewrite (#16)

Ecdh kdf test vectors (#10)

Add test vectors for ECDH x963 style with KDF x963 (#9)

Ecdh custom test (#8)