Make the dynamic node graph execution asynchronous (#1218)

* Make node graph execution async

Make node macro generate async node implementations

Start propagating async through the node system

Async checkpoint

Make Any<'i> Send + Sync

Determine node io type using panic node

Fix types for raster_node macro

Finish porting node registry?

Fix lifetime errors

Remove Send + Sync requirements and start making node construction async

Async MVP

Fix tests

Clippy fix

* Fix nodes

* Simplify lifetims for node macro + make node macro more modular

* Reenable more nodes

* Fix pasting images

* Remove http test from brush node

* Fix output type for cache node

* Fix types for let scope

* Fix formatting

editor/src/messages/tool/common_functionality/overlay_renderer.rs

@@ -24,7 +24,7 @@ struct ManipulatorGroupOverlays {
 	pub out_line: Option<Vec<LayerId>>,
 }
 impl ManipulatorGroupOverlays {
-	pub fn iter<'a>(&'a self) -> impl Iterator<Item = &'a Option<Vec<LayerId>>> {
+	pub fn iter(&self) -> impl Iterator<Item = &'_ Option<Vec<LayerId>>> {
 		[&self.anchor, &self.in_handle, &self.in_line, &self.out_handle, &self.out_line].into_iter()
 	}
 }

editor/src/messages/tool/common_functionality/shape_editor.rs

@@ -145,7 +145,7 @@ impl ShapeState {
 	}
 
 	/// Provide the currently selected points by reference.
-	pub fn selected_points<'a>(&'a self) -> impl Iterator<Item = &'a ManipulatorPointId> {
+	pub fn selected_points(&self) -> impl Iterator<Item = &'_ ManipulatorPointId> {
 		self.selected_shape_state.values().flat_map(|state| &state.selected_points)
 	}