Add support for goimports as well as go fmt
Add support for goimports as well as go fmt

Convenience targets, instead of "make lint"

Because golangci-lint is so big and slow...

warmchang/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,warmchang/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,kubernetes/minikube