Change "out_file" type from Directory to Path

With the new Pydra typing system, "out_file" input needs to be a str or a Path, not a Directory, because the contents of the directory will are included in the hash and so the hash of the node will change after the node is run (and will be missed by downstream nodes)

1.2.0

Adds "out_files" output field and better handling of postfixes

With the exception of fMRI and DWI datasets, if dcm2niix processes a file with more than 3 dimensions (e.g. multiple echos, multiple antennas/coils, multiple real/imaginary/mag/phase components, etc...), it will split the image into separate images disambiguated by postfixes. This release adds better handling of these cases by

• Adding a new catchall out_files output field that collects all disambiguated images and their JSON side cars (if present) into a single list.
• echo and suffix input fields are replaced with generic file_postfix field, which selects one disambiguated files to return in the out_file field
  • out_file is set to attrs.NOTHING if file_postfix

1.1.0

• Adds the suffix input to select between different file-name postfixes
• out_file and out_json return Path objects instead of str

1.0.0

Version 1.0.0 release. This release

• fixes issue with out_file extension being appended with '.gz' when compression is enabled
• handles case where there are multiple echos in single DICOM via the 'echo' input flag

1.0.0rc2

Release candidate 2 for v1.0. Contains a near feature complete task interface for dcm2niix tool