Nifti and compressed nifti, orientation support, load and save #52
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…on support for exporting, nifti images are now saved in the original orientation to the source image.
…if it already exists.
…racted and compressed to be kept
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Side note: Couldn't find a dev branch so chosen master as destination.
saving images as nifti resulted in orientation information to not be saved.
This meant that exported nifti images were not compatible with the original source image from which it was derived. Now added support so that orientation information from PTKDicomImage object is saved to the nifti header in NIFTI's RAS format. Also removed the flip on dimensions 1 and 2 as NIFTI stores data in opposite convention to DICOM.
Feature added to be to save and load compressed NIFTI files
Convenient to be able to directly work with compressed NIFTI files on disk rather than raw nifti as they can be several times smaller.