XPvgaStdFont()
  Restore the standard VGA Palette
------------------------------------------------------------------------------

  Function:    XPvgaStdPal()

               This function restores the normal Palette that is
               stored in the VGA. Just as when starting up.
               This function is handy to exit gracefully, when your
               application has been messing with the fonts. This functions is
               also much faster that repeated calls tp XPvgaColor().

               This function should also be called after a Call to
               XPfastPCX(), when a VGA is installed. Because XPfastPCX()
               might sometimes do some changes to the VGA palette that needs
               to be restored. All depending on the PCX picture.

  Syntax:      XPvgaStdPal() --> NIL

  Returns:     Nothing.

  Usage:       XPfastPCX("SPS")          // show a PCX pic in VGA
               MouseKey()                // Wait for Click/Key
               XPvmode(3)                // Text mode again..
               XPvgaStdPal()             // Normal Palette active again.