[feat]: add prompt_embeds support

[huisunCompiler]

Support use_cache and hidden_states_layers

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds new ModelBuilder pass configuration options related to KV cache and prompt-embeds generation, and verifies those options are forwarded to the underlying GenAI builder.

Changes:

• Added use_cache and hidden_states_layers pass config parameters to ModelBuilder.
• Added a unit test ensuring these options (and existing ones) are forwarded to create_model.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
test/passes/onnx/test_model_builder.py	Adds a test that captures create_model(**kwargs) to verify new options are passed through.
olive/passes/onnx/model_builder.py	Introduces new pass config params (use_cache, hidden_states_layers) with descriptions for text-encoder/prompt-embeds scenarios.