Qsm-forward

- Critical bugfix
- Included label.json
- Updated NIfTI file description header with some information such as TE, TR, B0

- Add seed parameter with default value 42 for reproducibility
- `--version` fixes
- Voxel size of the reconstruction is correctly separated from the voxel size of the object data
- Fixed bug with how `--suffix` is used
- `--save-field` now also generates and saves the local field
- Added necessary dataset_description.json, .bidsignore, and README files to BIDS output

- Fix a bug where generated data did not always reflect the desired voxel size due to a bug in `qsm_forward.resize`

- Set `--save-phase` to true by default

- Added `--save-phase` and `--suffix` as parameters on `qsm-forward` command-line entrypoint

- Use the original `data` folder from the QSM challenge 2.0 in-silico head phantom, rather than a modified version of it. This should make it easier for users with access to the data to use this package.