Initial support of NPU level0 Model

[rnwang04]

Description

Initial integration of NPU level0 pipeline model.

1. Why the change?

To integrate NPU level0 pipeline model into ipex-llm.

2. User API changes

See example usage.

3. Summary of the change

• need to add pipeline.dll into libs, which need to update release workflow [TODO]
• Implement cpp bindings to load necessary functions like generate_serve and InitLLMPipeline from pipeline.dll
• Create a new Class to support such NPU level0 pipeline model
• Implement initial from_pretrained method to load blobs and init llm pipeline
• Implement initial generate method to start serving using threading.Thread and mock a generate process
• Add an initial example for Llama2 NPU Pipeline model

4. How to test?

• Unit test: Please manually trigger the PR Validation here by inputting the PR number (e.g., 1234). And paste your action link here once it has been successfully finished.
• Application test

[jason-dai]

LGTM

[rnwang04]

PR validation is here: https://github.com/intel-analytics/ipex-llm-workflow/actions/runs/11271991100