title: [UWP]Running Background Tasks for more than 30sec
body: <p>In UWP, I have a timer task which runs every 15 minutes.
  The Background Tasks for timer trigger is allowed to run only for 30 seconds.
  But, in some cases I need the background task to run for more than 30 seconds.
  Also, this is required when the app is in suspended state.
  Any suggestions how this can be achieved?</p>