Rework test suite to use run script.

tests/Makefile.in

tests/README

tests/data/slapd-schema.conf

tests/run.in

tests/scripts/all

tests/scripts/args.sh

tests/scripts/conf.sh

tests/scripts/defines.sh

tests/scripts/makeldbm.sh

tests/scripts/test000-rootdse

tests/scripts/test001-slapadd

tests/scripts/test002-populate

tests/scripts/test003-search

tests/scripts/test004-modify

tests/scripts/test005-modrdn

tests/scripts/test006-acls

tests/scripts/test007-replication

tests/scripts/test008-concurrency

tests/scripts/test009-referral

tests/scripts/test010-passwd