哈希算法
.package(url: "https://github.com/DavidSkrundz/Hash.git", .upToNextMinor(from: "1.4.0"))
let bytes: [UInt8]
var description: String // hexadecimal representation
init()
mutating func hashData(_ data: [UInt8])
func finalize() -> Hash
static func hash(_ data: [UInt8]) -> Hash