feature: minikube status- indicate if using "docker-env"

[medyagh]

one of the common things I do after eval $(minikube docker-env) is checking if I am using my own docker or minikube's docker

it would be nice if "minikube status" command would tell me

host: ...
kubelet: ..
apiserver: ...
kubeconfig: ...
docker-env: in-use

and if we are not using docker-env no need to add that line and keep it hidden.
but we could includ that in the json output.

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale

[medyagh]

we still need to do this, would be happy to take PR for it

[priyawadhwa]

/remove-lifecycle stale

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale

[fejta-bot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle rotten

[medyagh]

we still wanna do this, but not urgnet or too important