Imports of kube-vpnkit-forwarder command

PathSynopsis
flagPackage flag implements command-line flag parsing.
github.com/moby/vpnkit/go/pkg/controller
github.com/moby/vpnkit/go/pkg/vpnkitPackage vpnkit allows a running VPNKit service to be reconfigured.
k8s.io/client-go/informersPackage informers provides generated informers for Kubernetes APIs.
k8s.io/client-go/kubernetesPackage kubernetes holds packages which implement a clientset for Kubernetes APIs.
k8s.io/client-go/rest
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
os/signalPackage signal implements access to incoming signals.
syscallPackage syscall contains an interface to the low-level operating system primitives.
timePackage time provides functionality for measuring and displaying time.