client: Accept numpy/torch tensors

[cchudant]

Description

Python client should accept numpy / torch tensors directly.

Motivation and Context

This would be a much better API.

Test plans

add unit tests

Additional Information

We should do it in a way that does not require users to install torch nor numpy, if they are not using this feature.

Checklist

• [x] This issue concerns BlindAI Client
• [ ] This issue concerns BlindAI Server