Add auth indicator LDAP KDB tests

Check the setstr results with an ldapsearch, then verify the getstrs
output.

https://github.com/krb5/krb5/commit/18252584fd8cbfb43144337833fc83d4d2d12da5
Author: Matt Rogers <mrogers@redhat.com>
Committer: Greg Hudson <ghudson@mit.edu>
Commit: 18252584fd8cbfb43144337833fc83d4d2d12da5
Branch: master
 src/tests/t_kdb.py |   27 +++++++++++++++++++++++++--
 1 files changed, 25 insertions(+), 2 deletions(-)