用CIMExporter分别处理读到的线路，开关，变压器等元件。

Signed-off-by: facat@lab.com <facat@lab.com>

testHasttable/element/line.cpp

@@ -1,6 +1,6 @@
 #include "line.h"
 
-Line::Line(const QPair<QString,QString>& fromTo, ACLineSegment* ac):Branch(fromTo.first,fromTo.second)
+Line::Line(const QPair<QString,QString>& fromTo, ACLineSegment* ac, QObject *parent):Branch(fromTo.first,fromTo.second)
 {
     this->ratio=1;
     this->ac=ac;