Include osifont in TechDraw

- also use PropertyFont instead of PropertyString

src/Mod/TechDraw/App/DrawViewAnnotation.h

@@ -48,7 +48,7 @@ public:
     virtual ~DrawViewAnnotation();
 
     App::PropertyStringList   Text;
-    App::PropertyString       Font;
+    App::PropertyFont         Font;
     App::PropertyColor        TextColor;
     App::PropertyInteger      TextSize;
     App::PropertyInteger      LineSpace;

src/Mod/TechDraw/App/DrawViewDimension.cpp

@@ -186,6 +186,7 @@ App::DocumentObjectExecReturn *DrawViewDimension::execute(void)
     }
 
     //TODO: if MeasureType = Projected and the Projected shape changes, the Dimension may become invalid (see tilted Cube example)
+    requestPaint();
 
     return App::DocumentObject::execute();;
 }

src/Mod/TechDraw/App/DrawViewDimension.h

@@ -59,7 +59,7 @@ public:
     App::PropertyEnumeration Type;                                     //DistanceX,DistanceY,Diameter, etc
 
     /// Properties for Visualisation
-    App::PropertyString  Font;
+    App::PropertyFont  Font;
     App::PropertyFloat   Fontsize;
     App::PropertyString  FormatSpec;
     App::PropertyFloat   LineWidth;

src/Mod/TechDraw/App/DrawViewSpreadsheet.h

@@ -49,7 +49,7 @@ public:
     App::PropertyLink         Source;
     App::PropertyString       CellStart;
     App::PropertyString       CellEnd;
-    App::PropertyString       Font;
+    App::PropertyFont         Font;
     App::PropertyColor        TextColor;
     App::PropertyFloat        LineWidth;
     App::PropertyFloat        TextSize;