krb5_plugin: Add winbind localauth plugin for MIT Kerberos
Applications (like OpenSSH) don't know about users and and
their relationship to Kerberos principals. This plugin allows that
Kerberos principals can be validated against local user accounts.
Administrator@WURST.WORLD -> WURST\Administrator
https://web.mit.edu/kerberos/krb5-latest/doc/plugindev/localauth.html
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13480
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
(cherry picked from commit
5e89a23ffaceccdc83d70a4ab2798ae25c10d580)