Sample code for ScoreModelGrader with audio

[YusakuNo1]

Description

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[Copilot]

Pull request overview

This pull request adds a new sample demonstrating how to use ScoreModelGrader with audio inputs for evaluations in the Azure AI Projects SDK. The sample is based on the OpenAI Evals API tutorial for audio inputs.

Changes:

• Adds sample code showing audio-based evaluation workflow including evaluation creation, eval run execution with audio data, and result polling
• Implements base64 audio encoding for WAV files to be used in eval runs
• Demonstrates integration with OpenAI's audio-capable models (gpt-4o-audio-preview) for transcription and scoring