[GREENFOOT-644] Add the scenario open/recent/close/save/save-as menu items in FX
The Open, Open Recent, Close, Save, Save As, Share and Quit items in the old Greenfoot UI all needed to be moved across to the JavaFX interface. They will be on the server VM, which should make their implementation easier (especially save-as, since that is basically close+open). There will be a separate ticket for new-scenario.
- Issue type: Task
- Priority: Medium