Spec2nii

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- Refinements and improvements to the GE SVS pipeline from Mark Mikkelsen.
- Add support for older jMRUI text formats which have a slightly different syntax. With thanks to Donnie Cameron.
- Handle odd case of XA like .twix headers in a VX baseline scan
- Improved (and validated) handling of Dinesh Deelchand's slaser sequences with integrated references (`svs_slaser(voi)_dkd(2)`)

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- Siemens .rda format now had corrected and validated orientations (tested on VE11 baseline).
- Siemens .rda format now handles MRSI/CSI data and matches DICOM output. Validated on VE11 baseline data.
- Fixes in Siemens Twix special case for universal editing sequence (HERMES conditions).
- Added handling of custom Bruker sequences `mt_sLASER`, `mt_MEGA_sLASER_V35` and `cl_STELASER_PA360_b`.
- Philips vendor MEGA-PRESS handled through DICOM pathway. Thanks to Sandeep Ganji and Yansong Zhao for their help.

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- SpectralWidth now added to header extension automatically to match bids specification.
- NIfTI-MRS V0.8 now generated.
- Better handling of philips spar/sdat tags and singleton dimensions.
- Fixed bug where no name was set when a mixed folder of imaging and spectroscopy dicom was provided.

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- The --anon flag can be passed with any call to anonymise after writing files.
- The Siemens enhanced dicom filetype pathway now handles CSI data.
- Fixed issue with RDA files having latin1 encoding. Thanks to gaunab on github. Fixes Issue 96.
- Now support GE p-files up to version 30.0.

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- Fixed a bug in Philips Classic DICOM orientations (supplementing the fixes to Enhanced DICOM in `0.6.11`)
- Updated Hyper sequence special case for Siemens twix and GE.

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- Fixed a bug in Philips spar/sdat orientations - this will affect voxels with rotations in more than one axes.
- Fixed a bug in Philips DICOM orientations - this will affect voxels with rotations in more than one axes.
- Python 3.7 now in [end of life](https://devguide.python.org/versions/) status and is no longer supported.
- `spec2nii dump/extract/insert` can now be used to inspect and fix non-compliant NIfTI-MRS files.