fhdeodato

Results 2 issues of fhdeodato

This PR merges all the content fixed at https://github.com/marcomagno/flutter-braintree and also adds the billing address as an option in the result of the process, together with the nonce

added the phone number, tracking number and carrier to the shipping details if data is available this fixes #1548 ## Summary Added to the mappers the trackingNumber, carrier and phone...