Further additions to the MonkeyTester application:

- Stage page: Scene options, content selection, allowing creation of chains of owned windows
- TableView page: fixed canvas-based cell factory
- CodeArea / RichTextArea pages
- two-column options pane
- IME events monitor: Logging -> IME Monitor

TODO

- remove Stage Tester tool by adding the missing options to the Stage page
- large models for CodeArea / RTA
- make font option UI smaller