Fix token renewal problem for rm and graph tokens passed in

[markcowl]

Description

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[markcowl]

on demand run here: http://azuresdkci.cloudapp.net/view/1-AzurePowerShell/job/powershell-demand/1898/

[cormacpayne]

@markcowl a few minor comments, otherwise LGTM

[cormacpayne]

@markcowl typo - CanRenwTokenLogin()

[cormacpayne]

@markcowl nit: remove extra space

[cormacpayne]

@markcowl nit: remove extra space

[cormacpayne]

On-demand: http://azuresdkci.cloudapp.net/job/powershell-demand/1903/