[FIX] Add files to result table even if the files are empty
[FIX] exec should write an empty string when file is empty instead of the filename
[ADD] added baseline for the new exec test and added a test to check for the empty files fix.
[ADD] added baseline for the new active-http test and added a test to check for the content-length 0 fix.
[ADD] Added the feature to return 0 content to the python http test server and added functionality for post requests
Merge remote-tracking branch 'origin/topic/struck/BIT-1277'

* origin/topic/struck/BIT-1277:
  [ADD] Added the feature to return 0 content to the python http test server and added functionality for post requests
  [ADD] added baseline for the new active-http test and added a test to check for the content-length 0 fix.
  [ADD] added baseline for the new exec test and added a test to check for the empty files fix.
  [FIX] exec should write an empty string when file is empty instead of the filename
  [FIX] Add files to result table even if the files are empty

BIT-1277 #merged