Add Milvus Integration

[Jacksonxhx]

🚀 The feature

Add a new vector database option as milvus

Motivation, pitch

The new vector database option provides more possible combinations of usage and can attract more customers

[ttinh]

May you please add db_name to the config options (like collection_name)?

[BrownTan]

May you please add to the config options (like )?db_name``collection_name

It seems there is no db_name option.

[parshvadaftari]

We have support for this now. Closing