title: Azure DevOps Get Current User ObjectId
body: <p>Is there a way to get the ObjectId of the Service Principal that is currently executing an Azure PowerShell task in Azure DevOps at all?</p>
  <p>I am creating a resource, and then want to apply permissions for the 'current' user.. but can't work out how to get the current user ObjectId / ApplicationId</p>
  <p>Is this possible?</p>