Add y+ capability
Option to calculate y+ values could be added to the FieldConvert module WSS. This should yield different outputs depending on the type of expansion. In 2D, this could yield \delta n+, \delta s+ (assuming a profile and denoting with n and s the local normal and tangential directions). In 2.5D, \delta z+ can also be added. For full cases 3D the simplest solution might possibly be to obtain \delta n+ only.