Redesigned the model-free dauvergne_protocol.py system test script for the interatomic concept.
The new script will be used to redesign how to set up a model-free analysis using the interatomic
data concept. It adds the new relax_data.dipole_pair user function which will be used to define the
dipolar relaxation interaction (this will inadvertently allow multi-dipole relation). The
heteronuc_type and proton_type parameters have been replaced with the spin_type parameter, as now
both the heternuclear and homonuclear spins need to be loaded into relax.
