[Improvement] add easyreg option to subworkflow/registration

[anroy1]

Describe your changes

Add the synthbet option to preproc_t1

List test packages used by your module

• processing.zip

Checklist before requesting a review

• Create the tool:
  • Edit ./modules/nf-scil/<category>/<tool>/main.nf
  • Edit ./modules/nf-scil/<category>/<tool>/meta.yml
• Generate the tests:
  • Edit ./tests/modules/nf-scil/<category>/<tool>/main.nf
  • Edit ./tests/modules/nf-scil/<category>/<tool>/nextflow.config
  • Add test data locally for tests with the fork repository
  • Generate the test infrastructure and md5sum for all outputs
• Ensure the syntax is correct :
  • Check indentation abides with the rest of the library (don't hesitate to correct others !)
  • Lint everything. Ensure your variables have good names.

To Do

niftiMD5SUM
add conditionnal warpconvert

[AlexVCaron]

Very nice work ! I think we can merge this fast after another round of review. My comments target syntax mostly. Also, some comments should move you forward to tests working.

[GuillaumeTh]

Good job ! Some small comments from my side.

[GuillaumeTh]

Not sure what this line is doing.

[anroy1]

Are you referring to ".map{ [[]] + it } or ref_warped output declaration?

[GuillaumeTh]

In fact it is not a = but a -. So I think you have a bug here.