Instance tables refactor part 5: unwrap GraphicGroup as multi-row Instance<GraphicElement> tables and move up transforms (#2363)

* Just group

* Partly working but without transforms

* Remove Transform/TransformMut from GraphicElement and GraphicGroupTable

* Fix layers and flattening

* Fix transform group handling on the remaining nodes

* Change collect metadata

* Add transform on vector data. TODO: Remove duplicate transform

* Small code tidying-up

* Add concatenate node?

* Remove ignore_modifications which is always false

* Improve transforms

* Mostly fix the nested transform cage angle (except leaf layers and skew)

* WIP attempt to integrate skew

* Fix nesting bounding box

* Avoid setting the transform

* Fix stroke transforms

* Renderer cleanup

* Fix tests for repeated elements not given unique point IDs

* Suppress cargo-deny warning

* Fix upgrade code for graphic group data

* Work around rendering issue in Isometric Fountain

---------

Co-authored-by: Adam <adamgerhant@gmail.com>
Co-authored-by: hypercube <0hypercube@gmail.com>

editor/src/dispatcher.rs

@@ -141,14 +141,18 @@ impl Dispatcher {
 					};
 
 					let graphene_std::renderer::RenderMetadata {
-						footprints,
+						upstream_footprints: footprints,
+						local_transforms,
 						click_targets,
 						clip_targets,
 					} = render_metadata;
 
 					// Run these update state messages immediately
 					let messages = [
-						DocumentMessage::UpdateUpstreamTransforms { upstream_transforms: footprints },
+						DocumentMessage::UpdateUpstreamTransforms {
+							upstream_footprints: footprints,
+							local_transforms,
+						},
 						DocumentMessage::UpdateClickTargets { click_targets },
 						DocumentMessage::UpdateClipTargets { clip_targets },
 					];