Preliminary sorted value support

servers/slapd/add.c

servers/slapd/attr.c

servers/slapd/back-bdb/monitor.c

servers/slapd/bconfig.c

servers/slapd/entry.c

servers/slapd/modify.c

servers/slapd/mods.c

servers/slapd/overlays/dynlist.c

servers/slapd/overlays/memberof.c

servers/slapd/overlays/syncprov.c

servers/slapd/proto-slap.h

servers/slapd/slap.h

servers/slapd/slapi/slapi_utils.c

servers/slapd/syncrepl.c