Fix with_rinv_as_nuclus (which was using finite-nuc model). Update x2c tests
Fix with_rinv_as_nuclus (which was using finite-nuc model). Update x2c tests

sunqm/pyscf,sunqm/pyscf,gkc1000/pyscf,gkc1000/pyscf,gkc1000/pyscf,gkc1000/pyscf,sunqm/pyscf,sunqm/pyscf,gkc1000/pyscf