Feature: Integrate Milvus into Cognita

[jinhonglin-ryan]

Summary

This pull request introduces Milvus integration into Cognita, enabling efficient vector similarity searches and high-dimensional data storage. The implementation includes schema creation, data insertion, and vector-based indexing for enhanced information retrieval.

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Key Features:

• Supports both local and remote configurations for Milvus.
• Creates and manages collections dynamically based on schema definitions.
• Provides utility functions for inserting, updating, and querying documents.
• Enables incremental updates for efficient data ingestion.
• Implements batch processing for document insertion and deletion.