T08b menus: menu bar over the native menus, searchable menu, pie menu; megamenu points to the navigation menu; menus follow their hosts

src/menus/mod.rs

@@ -1,8 +1,13 @@
+mod bar;
+mod draw;
 mod hosts;
 mod menu;
 mod model;
+mod pie;
 #[cfg(all(test, feature = "test-support"))]
 mod tests;
 
-pub use hosts::{ContextMenu, DropdownMenu, OverflowMenu, SplitButton};
+pub use bar::MenuBar;
+pub use hosts::{ContextMenu, DropdownMenu, OverflowMenu, SearchableMenu, SplitButton};
 pub use model::{Menu, MenuItem};
+pub use pie::{PieItem, PieMenu};