Function findSceneObjectByName

findSceneObjectByName(root: SceneObject, name: string): SceneObject
Searches for a SceneObject with the given name in the tree rooted at the given root SceneObject.
Parameters
- root: SceneObject
  The root SceneObject of the tree to search.
- name: string
  The name of the SceneObject to search for.
Returns SceneObject
The first SceneObject with the given name if it exists in the tree, or undefined otherwise.