Rework filter code

build/main.dsw

include/ldap_pvt.h

include/ldap_pvt_uc.h

libraries/liblber/decode.c

libraries/liblber/liblber.dsp

libraries/libldap/compare.c

libraries/libldap/cyrus.c

libraries/libldap/getdn.c

libraries/libldap/libldap.dsp

libraries/libldap/search.c

libraries/libldap/utf-8.c

libraries/libldap/util-int.c

libraries/libldap_r/libldap_r.dsp

libraries/libldap_r/tpool.c

libraries/liblunicode/ucdata/ucdata.c

libraries/liblunicode/ucdata/ucgendat.c

libraries/liblunicode/ucstr.c

libraries/liblutil/liblutil.dsp

libraries/librewrite/map.c

libraries/librewrite/subst.c