added equil, eqdsk, ne, te, ne_rho, te_rho and direct aug_mapping cases in new gdat for AUG, improved geteqdskAUG as well

git-svn-id: https://spcsvn.epfl.ch/repos/TCV/gdat/trunk@5040 d63d8f72-b253-0410-a779-e742ad2e26cf