Optimize rendering by caching intermediate render results when panning/zooming (#3147)

* Add svg render node

WIP

Fix error in context nullificaton node insertion

Correctly translate metadata

Fix warning

* Cleanup

* Remove color / gradient check and fix svg defs

* Implement viewport filling transform modification for vello

* Cleanup and comments

* Code review

node-graph/gstd/src/lib.rs

@@ -1,4 +1,5 @@
 pub mod any;
+pub mod render_node;
 pub mod text;
 #[cfg(feature = "wasm")]
 pub mod wasm_application_io;