title: How to add/update individual result to each test step in testcase of VSTS/TFS programatically
body: <p>I'm able to update test result to testcase in VSTS through program.
  <a href="https://stackoverflow.com/questions/44561306/add-test-result-to-a-test-runtestcase-in-vsts">Test Case Result Updation</a></p>
  
  <p>Now, i want to update the result of each test step in test case. Couldn't find any related info. Please help</p>