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

node-graph/graph-craft/src/document.rs

@@ -295,7 +295,7 @@ impl NodeNetwork {
 		self.previous_outputs.as_ref().unwrap_or(&self.outputs)
 	}
 
-	pub fn input_types<'a>(&'a self) -> impl Iterator<Item = Type> + 'a {
+	pub fn input_types(&self) -> impl Iterator<Item = Type> + '_ {
 		self.inputs.iter().map(move |id| self.nodes[id].inputs.get(0).map(|i| i.ty()).unwrap_or(concrete!(())))
 	}