Allow users to determine output file name
For now only some parameters are take into account in the file name (pag value, slice...) So when users wants to compare slice with or without a filter... This become a mess. On option could be to allow users determine the output file name with predefine keywords / pattern like:
- {phase}{slice_index}{dataset}
- {filter}_{dataset}
- ...
- and them the f-string is solved from nabu reconstruction parameters