Added tests for PolyLine, (failing) border tests for Polygon, Circle.
Added tests for PolyLine, (failing) border tests for Polygon, Circle.

hoodie/libavg,libavg/libavg,libavg/libavg,hoodie/libavg,th3infinity/libavg,hoodie/libavg,th3infinity/libavg,th3infinity/libavg,th3infinity/libavg,libavg/libavg,hoodie/libavg,libavg/libavg