[JS] feat: Azure AI Search data source (#1361)

## Linked issues

closes: #1360 #1267 #1266 (issue number)

## Details
Introducing a sample to showcase how to integrate the Azure AI Search
data source.

#### Change details
- Included scripts to create/delete index
- Included Teams Test tool
- Azure AI Search data source

## Attestation Checklist

- [x] My code follows the style guidelines of this project

- I have checked for/fixed spelling, linting, and other errors
- I have commented my code for clarity
- I have made corresponding changes to the documentation (updating the
doc strings in the code is sufficient)
- My changes generate no new warnings
- I have added tests that validates my changes, and provides sufficient
test coverage. I have tested with:
  - Local testing
  - E2E testing in Teams
- New and existing unit tests pass locally with my changes

---------

Co-authored-by: Corina <14900841+corinagum@users.noreply.github.com>

js/samples/08.datasource.azureAISearch/.eslintignore

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js/samples/08.datasource.azureAISearch/.eslintrc

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js/samples/08.datasource.azureAISearch/.gitignore

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js/samples/08.datasource.azureAISearch/.prettierignore

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