v1.26.2

-- Fix PlotProbeGUI doe not plot the stim condition selected in MainGUI. Fix is to change the calls to ChildGuiClass in MainGUI to allow passing of arguments, which allows passing of condition argument to PlotProbeGUI
-- Sync DataTree in Homer3 with DataTree in AtlasViewer so it's the same code
-- Fix small bug in StimEditGUI.m when user clicks on axes and current tree node does not have stims (like group or subject) we get error. We should just exit gracefully if we see that time vector is empty