OAuth2 for Withings API

OAuth2 package extends golang.org/x/oauth2 to support using OAuth2 to access Withings.

License

Some of the code in this package has been copied from golang.org/x/oauth2 and is under a BSD-style license. See the License File for more information.

The rest of the code is under the MIT License. See the License File in the repository root for more information.