onnxruntime

f481b17a - Add dedicated API to support extracting compatibility string from model metadata (#27015)

Add dedicated API to support extracting compatibility string from model metadata (#27015) ### Description This change proposes a new helper ORT API for callers that need to extract the model compatibility string from a precompiled model. ### Motivation and Context <!-- - Why is this change required? What problem does it solve? - If it fixes an open issue, please link to the issue here. --> See #25749 for more background on the model compatibility concept and infrastructure; #25841 provides a related helper API for an application to call to do a validation check using the compatibility info string. However, there is no direct way to get to the model metadata without creating a session (which some callers may prefer to avoid) or by taking a dependency on a separate library to parse the model's protobuf (which again callers may prefer to avoid). This change proposes a separate helper API which can be used to retrieve the compatibility info string, thereby avoiding session creation or an external dependency. This does incur some amount of redundant work in that the model protobuf will be parsed again during session creation- but for some callers, this tradeoff may be acceptable. --------- Co-authored-by: Aditya Rastogi <adityar@ntdev.microsoft.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: adrastogi <8368026+adrastogi@users.noreply.github.com>