add _set_up() to Configuration to add a self.current property if missing after an Equiilbrium is loaded (for backwards compatibility with older versions of DESC prior to the toroidal current constraint PR
add _set_up() to Configuration to add a self.current property if missing after an Equiilbrium is loaded (for backwards compatibility with older versions of DESC prior to the toroidal current constraint PR

PlasmaControl/DESC,PlasmaControl/DESC