Auto-generate enum type widget boilerplate for radio buttons and dropdown menus (#2589)

* First draft of factoring out the dropdown boilerplate

* Add proc macro for enum boilerplate

* Detect whether to say `crate` or the name

* Clean up the input and naming of the enum macro

* Rename a file

* Do the rename of code too

* Use the attribute-driven selection of radio vs dropdown

* Add a metadata struct and tooltips

* Move the new traits to a better place.

* Use ChoiceType, part 1

* Use ChoiceType, part 2

* Introduce a builder API for choice widgets

* Start using the new new API

* DomainWarpType should be a dropdown still

* Handle the case where a node property can never have a socket

* Rustfmt

* Code review

* Update stable node IDs in test

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

editor/src/messages/portfolio/menu_bar/menu_bar_message_handler.rs

@@ -414,16 +414,15 @@ impl LayoutHolder for MenuBarMessageHandler {
 							action: MenuBarEntry::no_action(),
 							disabled: no_active_document || !has_selected_layers,
 							children: MenuBarEntryChildren(vec![{
-								let operations = BooleanOperation::list();
-								let icons = BooleanOperation::icons();
-								operations
-									.into_iter()
-									.zip(icons)
-									.map(move |(operation, icon)| MenuBarEntry {
-										label: operation.to_string(),
-										icon: Some(icon.into()),
+								let list = <BooleanOperation as graphene_core::registry::ChoiceTypeStatic>::list();
+								list.into_iter()
+									.map(|i| i.into_iter())
+									.flatten()
+									.map(move |(operation, info)| MenuBarEntry {
+										label: info.label.to_string(),
+										icon: info.icon.as_ref().map(|i| i.to_string()),
 										action: MenuBarEntry::create_action(move |_| {
-											let group_folder_type = GroupFolderType::BooleanOperation(operation);
+											let group_folder_type = GroupFolderType::BooleanOperation(*operation);
 											DocumentMessage::GroupSelectedLayers { group_folder_type }.into()
 										}),
 										disabled: no_active_document || !has_selected_layers,