saml2aws: init at 2.6.1

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.

pkgs/tools/security/saml2aws/default.nix

@@ -0,0 +1,28 @@
+{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  name = "saml2aws-${version}";
+  version = "2.6.1";
+
+  goPackagePath = "github.com/versent/saml2aws";
+  goDeps = ./deps.nix;
+
+  buildFlagsArray = ''
+    -ldflags=-X main.Version=${version}
+  '';
+
+  src = fetchFromGitHub {
+    rev = "v${version}";
+    owner = "Versent";
+    repo = "saml2aws";
+    sha256 = "0sg5qm1gyrisna247lmxfgpa22y6rnz9vd6yg92kxlcwr4ji8l1j";
+  };
+
+  meta = with stdenv.lib; {
+    description = "CLI tool which enables you to login and retrieve AWS temporary credentials using a SAML IDP";
+    homepage    = https://github.com/Versent/saml2aws;
+    license     = licenses.mit;
+    platforms   = stdenv.lib.platforms.linux;
+    maintainers = [ stdenv.lib.maintainers.pmyjavec ];
+  };
+}