BUG: Fixing Dock Panel Behaviors
This commit does the following:
- The Display and Color Map Panels are no longer the first two Tabs
- Loading in a model from file or creating a new model will now display the model dock panel if it is docked
- Loading in an attribute file will now display the attribute dock panel if it docked
- Selecting an operator from the ModelView Panel via its Context menu will now display the operator panel if it is docked.
- Loading in a scene file should now display the scene dock widget if it is docked