SVG serialization UnifyInputs option

src/serializers/SvgSerializer.h

@@ -515,6 +515,7 @@ protected:
 	bool use_namespace_, use_hlr_poly_, use_prefiltering_, always_project_, polygonal_;
 	bool emit_building_storeys_;
 	bool no_css_;
+	bool unify_inputs_;
 
 	int profile_threshold_;
 
@@ -566,6 +567,7 @@ public:
 		, polygonal_(false)
 		, emit_building_storeys_(true)
 		, no_css_(false)
+		, unify_inputs_(false)
 		, profile_threshold_(-1)
 		, file(0)
 		, storey_(0)
@@ -662,6 +664,14 @@ public:
 		no_css_ = b;
 	}
 
+	void setUnifyInputs(bool b) {
+		unify_inputs_ = b;
+	}
+
+	bool getUnifyInputs() const {
+		return unify_inputs_;
+	}
+
 	void setScale(double s) { scale_ = s; }
 	void setDrawingCenter(double x, double y) {
 		center_x_ = x; center_y_ = y;