(v5_convert): new function, converts a krb5_ccreds to a kafs_token in
three diffrent ways, not at all, local 524/2b, and using 524
(v5_to_kt): add code to do local 524/2b
(get_cred): use v5_convert
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11850 ec53bebd-3082-4978-b11e-865c3cabbd6b