[TD]make geom hatch lines on property change

src/Mod/TechDraw/App/DrawViewSection.h

@@ -110,6 +110,7 @@ public:
     TopoDS_Compound getSectionFaces() { return sectionFaces;};
     std::vector<TopoDS_Wire> getSectionFaceWires(void) { return sectionFaceWires; }
 
+    void makeLineSets(void) ;
     std::vector<LineSet> getDrawableLines(int i = 0);
     std::vector<PATLineSpec> getDecodedSpecsFromFile(std::string fileSpec, std::string myPattern);