Added StreamingAudio sample from monotouch-samples

Had to add:
player.Reset();
player.ResetOutputQueue();
to ViewDidDisappear method, in the block with FlushAndClose();
(test fix on sample app and fix sample if it works there too.)

* PlayerViewController.cs: From Miguel's StreamingudioSample.
  Commented out obsolete intialization code. 

* PlayerViewController.designer.cs: From StreamingAudio sample

* PlayerViewController.xib: From StreamingAudoi sample.

* QueueStream.cs: From StreamingAudioSample

* StreamingPlayback.cs: From StreamingAudio sample.

* DetailViewController.cs: No functional changes

* LockScreenAudio.csproj: Linker settings

* MasterViewController.cs: Add Stream Song Bar Button Item and click
  handler to open streaming controller.

* MyMusicPlayer.cs: No Functional changes except setting the avsession
  to inactive (check to see if that was necessary, one of a long
  string of debugging attempts.)