Add vlm notebook benchmark (#1439)

* Improve VLM quantization notebook structure with clear step-by-step organization

- Add Step 1: Installation and Setup
- Add Step 2: Data Preparation with sample image display
- Add Step 3: Load Original Model and Test
- Add Step 4: Configure and Apply Quantization (with substeps 4a and 4b)
- Add Step 5: Compare Results (with substeps 5a and 5b)
- Add Conclusion section summarizing benefits
- Improve readability and educational flow of the notebook

* Benchmakrs added

* Update notebooks/openvino/vision_language_quantization.ipynb

Co-authored-by: Nikita Savelyev <[email protected]>

* Update notebooks/openvino/vision_language_quantization.ipynb

Co-authored-by: Nikita Savelyev <[email protected]>

* Add measurements per model

* Update notebooks/openvino/vision_language_quantization.ipynb

* updates

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Co-authored-by: Nikita Savelyev <[email protected]>
Co-authored-by: Ella Charlaix <[email protected]>
Co-authored-by: Ella Charlaix <[email protected]>

Author: 3 people