Integrate Gemini2 multimodal embeddings

[louprouan]

Feature Description

Hi Team,
would be great to add this in Flowise :
https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-embedding-2/

Thank you

Feature Category

Integration

Problem Statement

For RAG usecase involving image, audio, videos, documents, etc...

Proposed Solution

Would be nice to add the upsert to vector nodes using the new google embeddings, and add/adjust datasource nodes to manage new file formats.

Mockups or References

No response

Additional Context

No response