TdxRibbonRadialMenu - Add the collapsible display mode

With VCL 13.1.3, we introduced a new display mode to radial menus - collapsible mode. This mode helps you mimic the menu behavior provided by Microsoft Office OneNote 2013.
The method you use to invoke a radial menu designates its display mode: collapsible or popup. In collapsible mode (invoked via the menu's new Show method), a radial menu always persists on screen until its Hide method is called. The menu is initially collapsed, displaying only the central button. An end-user can click or tap the button to expand the menu to display its main level commands. While the menu is expanded, selecting the central button, executing a command, or clicking or tapping outside menu bounds in this mode, exits to the main level and collapses the menu into the central button.
In popup mode (invoked via the menu Popup or PopupFromCursorPos method), a radial menu is always expanded to display its commands. Selecting the central button, executing a command, or clicking or tapping outside the menu bounds in this mode closes a menu (as with a popup menu).
To programmatically close a radial menu in any display mode, call the menu Hide method. Run the NotesDemo shipped with the ExpressBars Suite to see the collapsible display mode in action.