Add md5sum checks for data copied to results folder

[aclum]

Update automation code to check the md5sum values to make sure file transfers to /global/cfs/cdirs/m3408/results worked correctly. The data_object_set md5_checksum values can be used for this.

Example where this didn't work properly microbiomedata/issues#716

[aclum]

FWIW JAWS is using shutil.copy + filecmp.cmp, said this is less intensive than md5sum.