Added a system test script for testing the saturation-recovery R1 experiment.
This was created by Andras Boeszoermenyi <Andras_Boeszoermenyi att hms dott harvard dot edu>. The
file was taken from the saturation_recovery.tar.gaz file
(https://gna.org/task/download.php?file_id=22997) are attached to the task at
http://gna.org/task/?7415. The only difference with the original script is that the grace.view user
function calls have been removed, as these cannot be used in a system test.
