related to measurement changes, for example we got only
5.7 cm long line for "FORWARD 10cm", because the processed
value measured in 0.0100 mm instead of the correct twips
(pt/20 ~ 0.0176mm).

Note: only the line drawing was shorter, the turtle path
didn't change, so the turle could draw only dashed line
for multiple FORWARD or BACK, instead of a continuous one.

regression from
    commit 36bade04
    tdf106792 Get rid of SvxShapePolyPolygonBezier

Change-Id: I16d75dbdadef5af9c545abc86575490559b3d54c
Reviewed-on: https://gerrit.libreoffice.org/61145
Tested-by: Jenkins
Reviewed-by: László Németh <nemeth@numbertext.org>