Implement HuggingFace ONNX Model Integration

[StephenTheodore]

Goal

Integrate HuggingFace models via ONNX Runtime for advanced face analysis (demographics, emotions, etc.)

Requirements

• Add ONNX Runtime NuGet packages
• Implement age/gender/ethnicity classification models
• Add emotion detection capabilities
• Create model factory pattern (IModelFactory) for different analysis models
• Support for loading custom ONNX models
• Batch processing for multiple faces

Acceptance Criteria

• ONNX Runtime integrated
• Age estimation model working
• Gender classification implemented
• Ethnicity/race detection (ethical considerations noted)
• Emotion recognition functional
• Model factory pattern implemented
• Configuration for switching models
• Unit tests for model inference

Priority

High - Advanced analysis requirement

Labels

enhancement, ai-ml, onnx