[TD] DrawUtil: remove unused includes

- also sort includes
- also move a definition to it
- also adapt two Gui files accordingly

src/Mod/TechDraw/Gui/TaskLeaderLine.cpp

@@ -28,12 +28,9 @@
 #include <QGraphicsScene>
 #endif
 
-
+#include <App/Document.h>
 #include <Base/Console.h>
 #include <Base/Tools.h>
-
-#include <App/Document.h>
-
 #include <Gui/Application.h>
 #include <Gui/BitmapFactory.h>
 #include <Gui/Command.h>
@@ -43,15 +40,15 @@
 #include <Gui/Selection.h>
 #include <Gui/ViewProvider.h>
 #include <Gui/WaitCursor.h>
-
+#include <Mod/TechDraw/App/ArrowPropEnum.h>
+#include <Mod/TechDraw/App/DrawLeaderLine.h>
 #include <Mod/TechDraw/App/DrawPage.h>
 #include <Mod/TechDraw/App/DrawUtil.h>
 #include <Mod/TechDraw/App/DrawView.h>
-#include <Mod/TechDraw/App/DrawLeaderLine.h>
-#include <Mod/TechDraw/App/ArrowPropEnum.h>
-
-#include <Mod/TechDraw/Gui/ui_TaskLeaderLine.h>
+#include <Mod/TechDraw/App/LineGroup.h>
 
+#include "TaskLeaderLine.h"
+#include "ui_TaskLeaderLine.h"
 #include "DrawGuiUtil.h"
 #include "PreferencesGui.h"
 #include "QGSPage.h"
@@ -66,7 +63,6 @@
 #include "QGILeaderLine.h"
 #include "Rez.h"
 
-#include "TaskLeaderLine.h"
 
 using namespace Gui;
 using namespace TechDraw;