fix bezier curve drawing when replaying output records
fix bezier curve drawing when replaying output records

 * before, when we invoked the bezier drawing code in a context where
   replay-output-record would get called with non-zero
   output-record-position, we weren't adjusting the coordinates of the
   bezier curve when drawing it.

   The other drawing primitives have it a bit easier as they all just
   take simple values and the code in the particular setf
   output-record-position method was free to just hack the slots of
   the output record. Since the bezier designs are stored as objects,
   we can't/don't want to modfify those objects when replaying
   them. So... we make a new translation for the output record and add
   new slots to bezier-design-output-record
   and bezier design to store this translation. Then we apply the
   translation as necessary in medium-draw-bezier-design*.

slyrus/mcclim,slyrus/mcclim