Uploading OpenVINO example notebooks

[rajatkrishna]

Description

Add example notebooks for exporting HuggingFace models using Optimum Intel and importing into Spark NLP. The following notebooks are added:

• BertEmbeddings
• E5Embeddings
• LLAMA2Transformer
• RoBertaEmbeddings
• XlmRoBertaEmbeddings
• T5Transformer

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Code improvements with no or little impact
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING page.
• I have added tests to cover my changes.
• All new and existing tests passed.