[TD]Fix RichText parent in scene (fix #18283) (#18768)

* [TD]allow DrawViewAnno to be attached to another view

* [TD]allow image and spreadsheet attach to view

* [TD]ensure correct parent in scene

* [TD]refactor command helpers to separate file

- gathering the helpers in one place
- helper redundancy to be address in another change

* [TD]create symbol, spreadsheet, image with parent

* [TD]fix claimChildren for some views

- also includes many lint fixes

src/Mod/TechDraw/App/DrawViewSpreadsheet.cpp

@@ -63,6 +63,9 @@ DrawViewSpreadsheet::DrawViewSpreadsheet()
     ADD_PROPERTY_TYPE(TextSize, (12.0), vgroup, App::Prop_None, "The size of the text");
     ADD_PROPERTY_TYPE(LineWidth, (0.35), vgroup, App::Prop_None, "The thickness of the cell lines");
 
+    ADD_PROPERTY_TYPE(Owner, (nullptr), vgroup, (App::PropertyType)(App::Prop_None),
+                      "Feature to which this sheet is attached");
+
     EditableTexts.setStatus(App::Property::Hidden, true);
 
 }