added simple gui and more scripting functions

-Added simple gui to display messages on screen
-LoopButton is recursive now so should support nexting
-New script commands:
-+ActivateWindow - finds target window as defined in ini file *does not
work in compiled exe for some reason?*
-+SendKeyifbuttonnotexists - send key only if target graphic does not
exist
-+Sleep - pause in the script
-+MouseMove - move the mouse
-+MouseWheelScroll - clicks an image on the screen (scroll bar) and uses
the mousewheel to scroll at a set interval
-+DragScrollBar - click and hold scroll bar graphic and drag up or down
(positive or negative increments)