title: SHA256 in Swift - Importing framework issue
body: <p>I'm trying to use CC_SHA256_DIGEST_LENGTH in one of my functions in Swift and it throws an error because it cannot find that symbol. I've tried everything, importing CommonCrypto in the bridge-header and trying that .map solution.. Nothing works.</p>
  
  <p>How can I use CC_SHA256_DIGEST_LENGTH in Swift? All the solutions seems to have stopped working.
  Thank you!</p>