[FIX] mat 7.3 support for SPM.mat files

[adamnarai]

Summary

Fixes #2162
Fixes #3432

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

• Replace sio.loadmat with a load function specific for SPM.mat files, so it also supports >2 GB mat 7.3 HDR files
• Fix MATLAB's test_run_interface which I also encountered while running the tests

[codecov]

Codecov Report

Attention: Patch coverage is 5.00000% with 38 lines in your changes missing coverage. Please review.

Project coverage is 70.46%. Comparing base (e03ab6f) to head (bd0d585).
Report is 187 commits behind head on master.

Files with missing lines	Patch %	Lines
nipype/utils/filemanip.py	2.77%	35 Missing ⚠️
nipype/interfaces/spm/model.py	33.33%	2 Missing ⚠️
nipype/interfaces/tests/test_matlab.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #3650 +/- ## ========================================== - Coverage 70.83% 70.46% -0.37%  ========================================== Files 1276 1277 +1 Lines 59320 59153 -167 Branches 9826 8590 -1236 ========================================== - Hits 42019 41685 -334  - Misses 16125 16340 +215  + Partials 1176 1128 -48 

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[effigies]

It would be cleaner to break out the functionality you have into its own function and put the try/catch logic here.

Suggested change

	spm = load_spm_mat(self.inputs.spm_mat_file, struct_as_record=False)
	try:
	spm = sio.loadmat(self.inputs.spm_mat_file, struct_as_record=False)
	except NotImplementedError: # Matlab 7.3+
	spm = load_spm_mat(self.inputs.spm_mat_file)