[ENH] Add ExtractedBrainN4 output to ANTs CorticalThickness interface

[satra]

List of changes proposed in this PR (pull-request)

• added new output option for antsCorticalThickness
• fixed an input name for RealignUnwarp and generated auto test

Acknowledgment

• (Mandatory) I acknowledge that this contribution will be available under the Apache 2 license.

[codecov-io]

Codecov Report

Merging #2784 into master will increase coverage by 0.69%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master    #2784      +/-   ##
==========================================
+ Coverage    66.8%   67.49%   +0.69%     
==========================================
  Files         341      341              
  Lines       43295    43297       +2     
  Branches     5369     5369              
==========================================
+ Hits        28923    29224     +301     
+ Misses      13623    13371     -252     
+ Partials      749      702      -47

Flag	Coverage Δ
#smoketests	50.64% <66.66%> (+2.44%)	⬆️
#unittests	64.89% <66.66%> (-0.04%)	⬇️

Impacted Files	Coverage Δ
nipype/interfaces/spm/preprocess.py	57.03% <100%> (+4.14%)	⬆️
nipype/interfaces/ants/segmentation.py	73.73% <50%> (-0.09%)	⬇️
nipype/pipeline/plugins/legacymultiproc.py	60.5% <0%> (-4.5%)	⬇️
nipype/pipeline/engine/utils.py	82.14% <0%> (+0.11%)	⬆️
nipype/algorithms/misc.py	45.97% <0%> (+0.11%)	⬆️
nipype/pipeline/engine/nodes.py	84.52% <0%> (+0.33%)	⬆️
nipype/interfaces/fsl/utils.py	70.32% <0%> (+0.65%)	⬆️
nipype/interfaces/io.py	54.44% <0%> (+0.69%)	⬆️
nipype/pipeline/engine/workflows.py	79.15% <0%> (+1.18%)	⬆️
nipype/pipeline/plugins/multiproc.py	84.56% <0%> (+1.23%)	⬆️
... and 9 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 11f8eb2...bca9dfe. Read the comment docs.