Limits for magnetic dead_layer(s) currently do not allow negative values #288
Description
Currently, the limits on magnetic dead_layer(s) do not allow for negative values. Before a recent update that enforces the parameter limits, users could set the value of a magnetic dead_layer to be negative - in effect making the dead_layer parameter no longer defining a region of 0 mSLD, but rather a position of the magnetic boundary relative to the layer in which it was anchored. For example, setting the value negative allowed "proximity" effects to be simply (albeit crudely) modelled - which in some cases is all that is needed.
The question here is, should we open up the limits on magnetic dead_layer to allow for this use case? And if so, this raises another question: Should the name of this parameter be changed to something more suitable? E.g. to magnetic_boundary?