Basedir for data files

[jjkoehorst]

Would it be ok to have a landing folder for the data files?
Now it is placed in the root of the crate but this creates quite some clutter.

There are only 2 lines I think that needs to be changed if it is ok that contain

dest = Path(parent.id if parent else "") / hash_

which could turn into

dest = Path(parent.id if parent else "data") / hash_

I can create a pull request but maybe it is better to have a discussion first?

[simleo]

I think it's better to put this on hold for now. We still have to see how the proposed changes to data file name / subdir in cwltool will affect runcrate run.