ADDED: Go to page hyperlinks in schematic editor (virtual page numbers)

The problem is that "real" page numbers can be duplicated, so we work around it
by using virtual page numbers instead which are guaranteed unique.

Example "goto:3" will go to page 3. If customised page numbers are used such as
a, b, c, then to go to page b, we should specify goto:2 (i.e. the virtual page
number).

include/plotters/plotter.h

@@ -440,9 +440,9 @@ public:
      * Create a clickable hyperlink with a rectangular click area
      *
      * @aBox is the rectangular click target
-     * @aDestinationURL is the target
+     * @aDestinationURL is the target URL
      */
-    virtual void HyperlinkBoxURL( const BOX2I& aBox, const wxString& aDestinationURL )
+    virtual void HyperlinkBox( const BOX2I& aBox, const wxString& aDestinationURL )
     {
         // NOP for most plotters.
     }