onnxruntime

51c42ae6 - [C#] Allow users to quickly populate native string buffers with utf8 bytes (#16559)

[C#] Allow users to quickly populate native string buffers with utf8 bytes (#16559) ### Description Introduce an API that allows users to gain access to a string tensor element buffer of requested length in bytes so then can quickly load any utf8 data. ### Motivation and Context Useful for testing an otherwise.