let data   = NSData(...)
let binary = Binary(data: data)

let binary = Binary(bytes: [0xDE, 0xAD]) // 1101 1110 1010 1101

// Bits
binary.bit(0) as Int      // 1
binary.bit(1) as Int      // 1
binary.bit(2) as Bit      // .Zero
binary.bit(3) as Bit      // .One
binary.bits(0, 16)        // 57005 

// Bytes
binary.byte(0) as Int     // 222
binary.bytes(0, 2) as Int // 57005