NAME
        AddFont -- add a font to the system list

   SYNOPSIS
        AddFont(textFont)
                A1

        void AddFont(struct textfont *);

   FUNCTION
        This function adds the text font to the system, making it
        available for use by any application.  The font added must be
        in public memory, and remain until successfully removed.

   INPUTS
        textFont - a textfont structure in public ram.

   RESULT

   NOTES
        This function will set the tf_Accessors to 0.

   BUGS

   SEE ALSO
        setfont()  remfont()  graphics/text.h