[TD]clazy warnings and duplicate setter/getter

- clazy warning re missing Q_OBJECT

- include TechDrawGlobal.h in headers

- resolve duplicate setter/getters

src/Mod/TechDraw/App/DrawViewDimension.h

@@ -22,6 +22,8 @@
 
 #ifndef _TechDraw_DrawViewDimension_h_
 #define _TechDraw_DrawViewDimension_h_
+
+#include <Mod/TechDraw/TechDrawGlobal.h>
 
 #include <tuple>
 
@@ -126,7 +128,8 @@ struct arcPoints
 class TechDrawExport DrawViewDimension : public TechDraw::DrawView
 {
     PROPERTY_HEADER_WITH_OVERRIDE(TechDraw::DrawViewDimension);
-
+    Q_OBJECT
+
 public:
     /// Constructor
     DrawViewDimension();