FEAT: Adding Default Auth for Python

[jahnvi480]

ADO Work Item Reference

AB#37927

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Summary

This pull request refactors the add_driver_name_to_app_parameter function in mssql_python/helpers.py to improve readability, modularity, and support for additional authentication types. Key changes include consolidating authentication handling logic, introducing a unified auth_type variable, and refining parameter filtering and token generation for different Azure Active Directory (AAD) authentication methods.

Refactoring and code simplification:

• Replaced multiple boolean flags (has_aad_interactive, has_aad_device_code) with a single auth_type variable to track the authentication type, improving code clarity and reducing redundant logic.
• Simplified parameter filtering by using a unified list of keys (exclude_keys) to exclude sensitive parameters during AAD authentication.

Enhanced support for AAD authentication:

• Added support for ActiveDirectoryDefault authentication by introducing a new case in the auth_type handling logic and using DefaultAzureCredential for token generation.
• Refactored token generation for ActiveDirectoryDeviceCode and ActiveDirectoryInteractive authentication to ensure consistent handling and modularity.

Other improvements:

• Updated the logic to append the APP=MSSQL-Python parameter more consistently when the APP key is not found. (F

[jahnvi480]

Added a new PR with required changes #135