Add go.mod

Author: Mikhail Kalinin

go.mod

@@ -0,0 +1,11 @@
+module github.com/selectel/docker-machine-driver
+
+require (
+	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78
+	github.com/docker/docker v0.0.0-20180514160530-ab0dccf80174
+	github.com/docker/machine v0.14.0
+	github.com/gophercloud/gophercloud v0.0.0-20180515014705-282f25e4025d
+	github.com/sirupsen/logrus v1.0.5
+	golang.org/x/crypto v0.0.0-20180514165030-2fc4c88bf43f
+	golang.org/x/sys v0.0.0-20180514143608-7c87d13f8e83
+)