Created function write_parameters.
Created function write_parameters.


Former-commit-id: bef72747e07bf2753f278d36d52cbb9bbbc9e9b7
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox