Dropdown list for egui.
[dependencies]
egui-dropdown = "0.15"// Working example can be found in `examples/dropdown.rs`
ui.add(DropDownBox::from_iter(
&self.items,
"test_dropbox",
&mut self.buf,
|ui, text| ui.selectable_label(false, text)
));Although it's called DropDownBox, technically speaking it should be called ComboBox.
But this is what egui uses for its version of the widget so yeah.
