Implemented the possibility to load predictions from details files and continue evaluating from there (#488)
* Implemented the possibility to load predictions from details files and continue evaluating from there.
* Run model as fallback when no details can be loaded.
* Improved loading speed and added more useful error messages.
* Fixed typo.
* Fixed gnarly bug with details loading to prevent loading too many examples.
* Unpacking predictions to fix issue with weirdly saved predictions.
* Made bulk loading easier by also allowing first timestamp more generally.
* Made loading details more robust against tensors being saved in the details files.