[IO-2040][external] Fix for NifTI exports that include filenames with dots

[JBWilkie]

Problem

As described in IO-2040, NifTI exports of files with filenames containing dots would fail due to there being too many suffixes

Solution

Add logic to extract the last 2 suffixes of each filename while preserving the existing error checking logic

Changelog

Fixed a bug preventing NifTI exports that include filenames with dots

[linear]

IO-2040 BUG: There is an issue exporting NIfTI that is not an issue for Darwin JSON. Seems to be an issue with having periods in the filename.

BUG submission from: Jade Yip
Summary (describe an issue):
There is an issue exporting NIfTI that is not an issue for Darwin JSON. Seems to be an issue with having periods in the filename.
Has a strategic customer been impacted or reported the issue?
NO
Share Loom/Screenshots with Console/Network opened:
Update: when attempting to export (4) 'Complete' labels on dataset: 683874 via V7 web console, we ran into the following issue:
{"error": "Misconfigured filename, contains too many suffixes"}
https://darwin.v7labs.com/workview?dataset=683874&item=018ab003-b4a8-465a-d0cc-47190b775fee

I'm not sure why periods '.' are not allowed in the V7 NIfTI basename (e.g., __1.0mm__AXIAL.nii.gz)

Possible solution: only parse the last two suffixes from right prior to returning error
if ".nii.gz" in path.name: # since path.stem only returns '.gz'
suffixes = path.suffixes[-2:]

darwin-py/darwin/exporter/formats/nifti.py

Line 138 in be3ba68

suffixes = filename.suffixes

Is there a way to rename existing V7 resources and/or export the completed NIfTI volumes with python pathlib suffixes > 2 without issue?
Darwin affected version
V2
Environment (production/staging; browser and OS version)
Production
Impact
All (all Darwin users are impacted)
Priority
High - significant number users no straightforward workaround, not blocking
Steps to reproduce
Try to export this file to NIfTI
Open the resulting JSON
See that it has an error
Expected Behaviour
Try to export this file to NIfTI
Export is successful
Team name from Superadmin
PictureHealth
Team & Dataset Link
Team:
https://darwin.v7labs.com/super_admin/teams/3523

Dataset:
https://darwin.v7labs.com/workview?dataset=683874&item=018ab003-b4a8-465a-d0cc-47190b775fee
Intercom ticket
https://app.intercom.com/a/inbox/pb9z3asr/inbox/shared/unassigned/conversation/293929?view=List
ARR

Assigned CSM

[Nathanjp91]

Possible issue but rest of the code looks good.