Adding ExperimentControl deceleration in ARSS.h and a call to it in IdleCallback;
Adding ControlTestScalingExperiment and LogTestScalingExperiment to sgp.h;
Implementing ControlExperiment as a dispatcher in SGP.cpp;
Implementing ControlTestScalingExperiment to save and finally write R(t);
Better scaling for test_scaling experiment in SGP.ini;