These are optional interfaces that your objects can implement which SceneObjectsData will reflect on and provide additional functionality for.
SceneObjects implementing this interface will have Initialize() invoked on them after your SceneView.Initialize() method has returned.
SceneObjects implementing this interface will have Configure() invoked on them immediately after all SceneObjects have had Initialize() invoked on them.
SceneObjects implementing this interface will have Update(deltaTime) invoked on them during the SceneView object's update cycle with Time.deltaTime as the parameter.
SceneObjects implementing this interface will have Destroy() invoked on them at the point in which the OnDestroy() method on your SceneView is being called by the UnityEngine.