Use iam-policy value for EMAIL if case-sensitive.

[IMBurbank]

Fixes #1936

Modify kfctl.createEnv to check for a case-mismatch between the EMAIL value provided by $(gcloud config get-value account) and the value in the iam-policy, and to use the iam-policy value in the case of a mismatch.

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This change is 

[k8s-ci-robot]

Hi @IMBurbank. Thanks for your PR.

I'm waiting for a kubeflow member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[pdmack]

/ok-to-test

[IMBurbank]

This PR passed presubmit checks a few days ago, but is beginning to go stale sitting unmerged. The first branch conflict just arose today.

Is there anything else I can do to help this PR through?

[abhi-g]

Sorry about the delay.

/lgtm

[abhi-g]

@IMBurbank Can you please update by merging master.

[IMBurbank]

No problem, and thank you for the response.

Another PR moved the $EMAIL assignment from the createEnv function to parseArgs. I moved this iam-policy check into parseArgs accordingly.

[abhi-g]

/lgtm

[abhi-g]

/approve

[k8s-ci-robot]

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This pull-request has been approved by: abhi-g

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