Scene storage backend integration (#51)

This PR adds Storyteller.ai API integration for saving and loading
Storyteller Studio scenes to/from the backend.

### Known issues
* The skybox is not currently stored in the serialized scene format

package.json

@@ -19,6 +19,7 @@
     "@types/node": "18.14.2",
     "@types/react": "18.2.14",
     "@types/react-dom": "18.2.6",
+    "@types/uuid": "^9.0.8",
     "@types/which": "^3.0.2",
     "@vitejs/plugin-react": "~4.0.0",
     "@vitest/coverage-c8": "~0.32.0",
@@ -45,6 +46,7 @@
     "lodash": "^4.17.21",
     "react": "18.2.0",
     "react-dom": "18.2.0",
-    "tslib": "^2.3.0"
+    "tslib": "^2.3.0",
+    "uuid": "^9.0.1"
   }
 }