The property stroke-miterlimit is transported to the renderers
via a new member mfMiterMinimumAngle in class LineAttribute
Several drawPolyLine methods are adapted. This patch does not
include changes in MetaAction. Presentation mode, printing, and
PDF-export is still wrong.

Corrected LineJoinMiter to LineJoinBevel in canvas, that s closer
to NONE. Removed DrawPolyLine method without MiterMinimumAngle
and adapted calls accordingly.

Change-Id: I6bcd24add5d85c4d9a39e3788e0682091c5fc9c4
Reviewed-on: https://gerrit.libreoffice.org/23946Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Armin Le Grand <Armin.Le.Grand@cib.de>
Reviewed-by: Regina Henschel <rb.henschel@t-online.de>