[DAR-5614][External] Make the NifTI importer re-orient files to orientation of target file instead of LPI

[JBWilkie]

Problem

Since we released the DISABLE_REORIENTATION_ON_UPLOAD feature flag, not every post-MED_2D_VIEWER file will be in the LPI orientation, but the current NifTI importer assumes they are

This ticket is to introduce logic into the NifTI importer similar to the export logic so that we re-orient inbound annotations to the target file instead of statically to LPI

Solution

Re-orient inbound NifTI annotations to the orientation of the remote file it's targeting

Changelog

Support for importing NifTI annotations to non-LPI oriented dataset files

[linear]

DAR-5614 Make `NifTI` importer re-orient files to orientation of target file instead of `LPI`

[JBWilkie]

Plans have changed - We are going to remove the DISABLE_REORIENTATION_ON_UPLOAD feature flag, so this change is not necessary