Changes to support NT single debug

clients/tools/ldapdelete.dsp

clients/tools/ldapmodify.dsp

clients/tools/ldapmodrdn.dsp

clients/tools/ldappasswd.dsp

clients/tools/ldapsearch.dsp

clients/ud/ud.dsp

include/setup.dsp

libraries/libavl/libavl.dsp

libraries/libavl/testavl.dsp

libraries/liblber/dtest.dsp

libraries/liblber/etest.dsp

libraries/liblber/liblber.dsp

libraries/libldap/apitest.dsp

libraries/libldap/libldap.dsp

libraries/libldap/ltest.dsp

libraries/libldap_r/apitest_r.dsp

libraries/libldap_r/libldap_r.dsp

libraries/libldap_r/ltest_r.dsp

libraries/libldbm/libldbm.dsp

libraries/libldif/libldif.dsp