[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/Gui/ViewProviderLeader.cpp

@@ -100,18 +100,18 @@ bool ViewProviderLeader::doubleClicked()
     return true;
 }
 
-void ViewProviderLeader::onChanged(const App::Property* p)
+void ViewProviderLeader::onChanged(const App::Property* prop)
 {
-    if ((p == &Color) ||
-        (p == &LineWidth) ||
-        (p == &LineStyle) ||
-        (p == &UseOldCoords)) {
-        QGIView* qgiv = getQView();
+    if ((prop == &Color) ||
+        (prop == &LineWidth) ||
+        (prop == &LineStyle) ||
+        (prop == &UseOldCoords)) {
+        auto* qgiv = getQView();
         if (qgiv) {
             qgiv->updateView(true);
         }
     }
-    ViewProviderDrawingView::onChanged(p);
+    ViewProviderDrawingView::onChanged(prop);
 }
 
 std::vector<App::DocumentObject*> ViewProviderLeader::claimChildren() const