Added XYplorer and Admin Commands to Special Items

Now when adding new favorite items, the Special Items menu contains
shortcuts for XYplorer's Scripting and Admin. Also, some small fixes and
other changes. "XYS_F::" is now added which will force focus of
XYplorer's main window. "XYS::" will keep the XYplorer's window in
whatever state it currently is while running the script.