implementing loading C20 and SLR models in static member (previously it was inside the init); updated the test; harmonized the aux routines that load the SLR models
implementing loading C20 and SLR models in static member (previously it was inside the init); updated the test; harmonized the aux routines that load the SLR models

jgte/orb,jgte/orb,jgte/orb,jgte/orb,jgte/orb