Add test KDB module

Add a simple read-only KDB module which can be used to exercise KDB
behavior which the DB2 module cannot reach.  Right now it supports
very basic get_principal functionality, aliases, and delegation
policy; in the future it could issue referrals or sign authdata.

src/Makefile.in

@@ -18,6 +18,7 @@ SUBDIRS=util include lib \
 	plugins/pwqual/test \
 	plugins/kdb/db2 \
 	@ldap_plugin_dir@ \
+	plugins/kdb/test \
 	plugins/preauth/otp \
 	plugins/preauth/pkinit \
 	plugins/tls/k5tls \

src/configure.in

@@ -1446,6 +1446,7 @@ dnl	ccapi ccapi/lib ccapi/lib/unix ccapi/server ccapi/server/unix ccapi/test
 	plugins/kdb/db2/libdb2/recno
 	plugins/kdb/db2/libdb2/test
 	plugins/kdb/hdb
+	plugins/kdb/test
 	plugins/preauth/cksum_body
 	plugins/preauth/otp
 	plugins/preauth/securid_sam2

src/plugins/kdb/test/Makefile.in

@@ -0,0 +1,21 @@
+mydir=plugins$(S)kdb$(S)test
+BUILDTOP=$(REL)..$(S)..$(S)..
+
+LIBBASE=test
+LIBMAJOR=0
+LIBMINOR=0
+RELDIR=../plugins/kdb/test
+SHLIB_EXPDEPS=$(KADMSRV_DEPLIB) $(KRB5_BASE_DEPLIBS)
+SHLIB_EXPLIBS=$(KADMSRV_LIBS) $(KRB5_BASE_LIBS)
+LOCALINCLUDES=-I../../../lib/kdb -I$(srcdir)/../../../lib/kdb
+
+SRCS = $(srcdir)/kdb_test.c
+
+STLIBOBJS = kdb_test.o
+
+all-unix:: all-liblinks
+install-unix::
+clean-unix:: clean-liblinks clean-libs clean-libobjs
+
+@libnover_frag@
+@libobj_frag@