Amazon Cognito Identity Js Versions Save

Added missing lib folder.

Locking down AWS SDK version.

Fixing verify software token call to work with access token.

Not sending UserContextData if it is not available.

Added support for TOTP and for new MFA configuration APIs.

Fixed typescript typings.

Added cookie storage support and solved clockdrift bug.

Fixed issue related to missing callback.

What has changed • Added react native optimizations for BigInteger

Fixed typescript typings.