Create a version of VideoQnA example with Zilliz/Milvus as Vector DB

[codingjaguar]

Description

Create a version of VideoQnA example with Milvus as Vector DB

The implementation can reference this code example for the interaction with Milvus vector database: https://milvus.io/docs/image_similarity_search.md

#OPEAHack

[yinghu5]

Hi @codingjaguar thank you a lot for raising the request. remind if anyone is interested in the topic, please contribute.
sample code include ChatQnA

[yinghu5]

link #1639

[yinghu5]

Hi @codingjaguar and all
As the issue was open for a while, i close it. if anyone want to contribute, please feel free to submit your PR.
And ChatQnA and MultimodalQnA example have Zilliz/Milvus as Vector DB can be the sample. thank you!