BigLetter()

         Returns an array with the big banner of a letter

    Syntax:

         BigLetter( nLetter ) -> aFormat

         aLetter : The ASCII value of the letter

    Description:

         Creates an returns an array with the format of a letter to create
         banners.

    Return:

         An array value.

    Example:

         BigLetter( Chr( "A" ) )  // returns      { "     #     ", ;
                                                    "    # #    ", ;
                                                    "   ## ##   ", ;
                                                    "  ##   ##  ", ;
                                                    ...          , ;
                                                  }