Fixed: a spatially varying analytical field set wrong boundary values and dummy cells on + faces of a non-periodic axis, because it read a face centre from the dummy layer. Its interior values were right.
Internal: inlets and analytical fields share PicurvSourceFaceSlotsCreate(), the analytical engine shares FinalizeCellFieldsFromBoundaryValues(), and the verification scalar functions moved to verification_sources.c. A curvilinear analytical boundary now takes the face-metric direction inlets use.