This function registers a Slapi_MatchingRuleEntry with the server. Register matching rules as part of the plug-in initialization function.
First, allocate the structure using slapi_matchingrule_new() . Next, set the members of the matching rule entry using slapi_matchingrule_set(). After setting the members, register the matching rule with the server using this function. Finally, free the memory allocated using slapi_matchingrule_free().