Description

• If bMatchDirectories is false, folderHierarchy should end with an extension, like dcm or par. This allows switching the dcm2nii_version using imPar.folderHierarchy{end}.

Requirements

If bMatchDirectories is false, a warning should be given if no extension is provided in folderHierarchy, and we automatically add .dcm as extension (assuming that this concerns enhanced DICOMs, which is the case mostly).

If a folder only contains one enhanced DICOM, this probably won't be an issue, but bMatchDirectories is actually useful when a folder contains multiple enhanced DICOMs, in which case each file is a separate "scan token".

This also requires folderHierarchy dcmExtFilter to be case insensitive.

How to test

Optional: insert description about how to test the code changes here

Release notes

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