Make change for testing pull request
Add NavPane as EventListener for NavTree
Add getController method
Set default selection node
Add method changeTaskPane()

Required to change the taskpane in main window.
Change taskpane upon navigation menu selection
Merge branch 'nav-taskpane-select' into ui-dev
Merge branch 'ui-dev' into develop
Merge remote-tracking branch 'devops/develop' into develop