Rebuild core around render graph AST and shared memory

Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

examples/cookbook/09-gltf-import-worker.js

@@ -0,0 +1,13 @@
+import { GltfImporter } from "@yawn/gltf-import";
+import { MeshHandles } from "@yawn/mesh-handles";
+
+/** Fetch a glTF URL in the import worker and wrap the resulting protocol handles. */
+export async function importGltf(core, url, options) {
+  const importer = new GltfImporter(core);
+  try {
+    const imported = await importer.load(url, options);
+    return new MeshHandles(core).fromImportedScene(imported);
+  } finally {
+    importer.dispose();
+  }
+}