v0.2.61 - Adding Auth 🚀 🚀 🚀

Summary:

Added authentication, crypto, and database providers, and updated routes, client, and tests accordingly

Key points:

• Hard-coded limits for entities and relations in r2r/base/providers/kg.py update_kg_prompt function.
• Added auth, crypto, and database configurations in r2r.json.
• Introduced new classes for user management in r2r/base/abstractions/user.py.
• Added AuthProvider, CryptoProvider, and DatabaseProvider classes in r2r/base/providers.
• Updated R2RClient in r2r/main/api/client.py to handle authentication.
• Added authentication routes in r2r/main/api/routes/auth.py.
• Updated ingestion, management, and retrieval routes to include authentication checks.
• Updated R2RBuilder and R2RProviderFactory to support new providers.
• Added tests for new authentication and database functionalities.
• Updated documentation and configuration files to reflect changes.