ENH: allow configurable field send/receive for surfaceNoise (#2639)

- replaced PstreamBuffers mechanism with globalIndex for both gather
  and scatter operations. Use scheduled communication by default, but
  is selectable.

- reduced communication with ensemble averaging and no-write

src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C

@@ -735,7 +735,7 @@ bool Foam::noiseModel::read(const dictionary& dict)
             );
     }
 
-    Info<< nl << endl;
+    Info<< endl;
 
     return true;
 }