Python: #6501 Anthropic Chat Completion

[andrewldesousa]

Motivation and Context

1. Why is this changed required? Support Anthropic models with Python (#6501)
2. What problem does it solve? ^^
3. What scenario does it contribute to? Multi model use cases and applications that would like to use Anthropic models
4. If it fixes an open issue, please link to the issue here: #6501

Description

The changes made follow the designs followed by the Mistral AI and Open AI connectors.

I added the following Classes :

• AnthropicChatPromptExcecutionSettings
• AnthropicChatCompletion
• AnthropicSettings

To test the changes with the tests please add ANTHROPIC_API_KEY and ANTHROPIC_CHAT_MODEL_ID as Enviorment Variable

What is implemented:

• [X] Integrate Anthropic ChatCompletion Models without Streaming
• [X] Integrate Anthropic Chat Completion Models with Streaming
• [X] Unit tests and integration tests
• [X] Extended Testing including Unit Testing & More Integration Tests

Contribution Checklist

• [X] The code builds clean without any errors or warnings
• [X] The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• [X] All unit tests pass, and I have added new tests where possible
• [X] I didn't break anyone :smile: