Trac Ticket #412 - memberof performance enhancement
https://fedorahosted.org/389/ticket/412
Fix description:
memberof.c: replaced DN strings with Slapi_DN and set the
normalized info to Slapi_Value flags. It reduces the number
of slaip_dn_normalize_ext call by ~25%.
attr.c, slapi-plugin.h: introduced a new API slapi_attr_
value_cmp_ext which takes Slapi_Value instead of struct
berval. By replacing with Slapi_Value, the value flag
(e.g., normalized info) can be passed to the syntax plugin.
value.c: changed slapi_value_compare to call slapi_attr_
value_cmp_ext instead of slapi_attr_value_cmp.
(cherry picked from commit 6a21e8e9be90de76549b8fb37dc744ca48234e00)