Gui: [skip ci] let view provider to decide to whether open a transaction on double-click

The sketcher view provider doesn't need a transaction on double-click or otherwise shows a useless entry in the undo dialog which when undoing leads to weird behaviour

src/Gui/ViewProviderDocumentObject.cpp

@@ -280,6 +280,11 @@ void ViewProviderDocumentObject::show(void)
     }
 }
 
+const char* ViewProviderDocumentObject::getTransactionText() const
+{
+    return QT_TRANSLATE_NOOP("Command", "Edit");
+}
+
 void ViewProviderDocumentObject::updateView()
 {
     if(!pcObject || testStatus(ViewStatus::UpdatingView))