[WIP] ENH: Read 4dfp_tools motion parameters

[effigies]

Summary

4dfp tools produces .dat files of the following pattern:

#mat2dat sub-MSC01_ses-func02_task-rest_bold_xr3d.mat
#$Id: mat2dat.c,v 1.16 2018/06/23 23:46:39 avi Exp $
#frame    dx(mm)    dy(mm)    dz(mm)    X(deg)    Y(deg)    Z(deg)     scale
     1    0.0485   -0.3493    0.0581   -0.0644    0.1646    0.1608    0.9959
     2    0.0587   -0.2188    0.0379   -0.0611    0.1391    0.1533    1.0006
     3    0.0798   -0.3905   -0.0083   -0.0515    0.1493    0.1359    1.0034

np.loadtxt loads the file pretty easily.

Will add a test file before merge.

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

Acknowledgment

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

[codecov-io]

Codecov Report

Merging #2765 into master will decrease coverage by <.01%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #2765      +/-   ##
==========================================
- Coverage   67.45%   67.45%   -0.01%     
==========================================
  Files         341      341              
  Lines       43355    43358       +3     
  Branches     5379     5380       +1     
==========================================
+ Hits        29245    29247       +2     
+ Misses      13413    13407       -6     
- Partials      697      704       +7

Flag	Coverage Δ
#smoketests	50.54% <33.33%> (-0.01%)	⬇️
#unittests	64.85% <0%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
nipype/algorithms/modelgen.py	67.44% <ø> (ø)	⬆️
nipype/algorithms/confounds.py	66.6% <ø> (ø)	⬆️
nipype/algorithms/rapidart.py	64.41% <ø> (ø)	⬆️
nipype/utils/misc.py	66.06% <33.33%> (-0.61%)	⬇️
nipype/interfaces/dynamic_slicer.py	17.47% <0%> (ø)	⬆️
nipype/interfaces/nipy/preprocess.py	45.79% <0%> (ø)	⬆️
nipype/interfaces/io.py	53.99% <0%> (ø)	⬆️
nipype/interfaces/freesurfer/preprocess.py	66.11% <0%> (ø)	⬆️
nipype/testing/utils.py	91.37% <0%> (+1.72%)	⬆️

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