Current version is broken, at least for use with Okta and AWS. New
version fixes this problem.
Packaging has changed a bit too, deps.nix was removed, and the top-level
`buildGoModule` is used insead, since the upstream project now exposes a
go.mod file.
Adds a new package, saml2aws, a CLI tool for managaing AWS logins via
SAML. For more information see https://github.com/Versent/saml2aws.
* Add nix expression to build the package.
* Add myself as a maintainer.
