The make setup command should check if the kind cluster is really up and running

[hillairet]

After cleaning up my docker containers and images to create some space on my machine, the make setup command is not working properly anymore.
The current kubectl context is still present but the kind cluster isn't so make setup finishes happily yet my cluster is no there.

Since the make setup command is supposed to spin up the kind cluster, it should also handle this edge case.