* Fix Batch to_torch method not updating dtype/device of already converted data.
* Fix dtype/device to forwarded by to_tensor for Batch over Batch.
* Add Unit test to check to_torch dtype/device recursive forwarding.
* Batch UT check accessing data using both dict and class style.
* Fix utils to_tensor dtype/device forwarding. Add Unit tests.
* Fix UT.
Co-authored-by: Alexis Duburcq <alexis.duburcq@wandercraft.eu>
Co-authored-by: n+e <463003665@qq.com>