instanciate __str__ ?
For now tomwer has is own 'string' representation of a scan. It could be interesting to generalize it through projects in order to have some homogeneity. In this case it should be done in tomoscan.
We could have
short_str for example. The first one return the full path + entry if necessary. The second one return the os.path.basename for edf or the file name for hdf5 ?