[gke-gcloud-auth-plugin] Support --configuration and determine whether to allow distinct arguments between invocation and kubeconfig

[LogicalShark]

Follow-up to #920

We should include arguments --configuration in the gcloud extra arguments and determine if any more need to be added. In addition, we should consider whether to it is helpful to implement an additional gcloud flag which would allow the user to set the arguments in the kubeconfig independently from those in the get-credentials call, e.g. gcloud container clusters get-credentials my-cluster --configuration=initial-config --gcloud-extra-args="--configuration=ongoing-config"

[k8s-ci-robot]

This issue is currently awaiting triage.

If the repository mantainers determine this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.