title: Prompting for a variable in when creating a release in TFS 2017 onpremise
body: <p>Folks,</p>
  
  <p>I'd like to prompt the user to enter a value when manually creating a release.</p>
  
  <p>At present, the user can select the build version to create the release from. I'd like the ability to enter additional information (well at least on string value).</p>
  
  <p>Is this possible in TFS 2017 onpremise?</p>
  
  <p>Thanks</p>