Downloaded file names

[pcaversaccio]

In terms of new files' names; the augmented images have some random sequence added to their name. I would avoid that and at least do it like the preprocessing files where they have 'preprocessed' added to the filename. But even then, since the files are downloaded to their specific parent folders (ORIGINAL, PREPROCES, and AUGMENT), there is technically no need to rename the files at all, which allows for consistency when reading them off the path.

[pcaversaccio]

We need to think about the consistency of file names. These filenames should be future-proof, i.e. if new applications will be part of the DAITA service (e.g. data annotation) we can adapt that structure. The ultimate goal of this issue is to find a canonical definition of how to save files.