onnxruntime

3c72f43f - Extend saving models optimized by inference session (#16912)

Extend saving models optimized by inference session (#16912) ### Description This PR adds support for saving model optimizations after loading a model that contains external data into an `InferenceSession`. ### Motivation and Context This PR is a follow-up to a [previous PR](https://github.com/microsoft/onnxruntime/pull/16716) for saving a model optimized by an `InferenceSession`.