Thumbnails for the layer node (#1210)

* Thumbnails for the layer node

* Raster node graph frames

* Downscale to a random resolution

* Cleanup and bug fixes

* Generate paths before duplicating outputs

* Fix stable id test

* Code review changes

* Code review pass with minor changes

---------

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

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

@@ -156,6 +156,7 @@ impl ProtoNode {
 
 		self.identifier.name.hash(&mut hasher);
 		self.construction_args.hash(&mut hasher);
+		self.document_node_path.hash(&mut hasher);
 		match self.input {
 			ProtoNodeInput::None => "none".hash(&mut hasher),
 			ProtoNodeInput::ShortCircut(ref ty) => {
@@ -629,12 +630,12 @@ mod test {
 		assert_eq!(
 			ids,
 			vec![
-				10739226043134366700,
-				17332796976541881019,
-				7897288931440576543,
-				7388412494950743023,
-				359700384277940942,
-				12822947441562012352
+				4471348669260178714,
+				12892313567093808068,
+				6883586777044498729,
+				13841339389284532934,
+				4412916056300566478,
+				15358108940336208665
 			]
 		);
 	}