cdc44ab DP: Add DP_WILDCARD and SSS_DP_WILDCARD_USER/SSS_DP_WILDCARD_GROUP

Authored and Committed by jhrozek 8 years ago
    DP: Add DP_WILDCARD and SSS_DP_WILDCARD_USER/SSS_DP_WILDCARD_GROUP
    
    Related:
        https://fedorahosted.org/sssd/ticket/2553
    
    Extends the Data Provider interface and the responder<->Data provider
    interface with wildcard lookups.
    
    The patch uses a new "wildcard" prefix rather than reusing the existing
    user/group prefixes.
    
    Reviewed-by: Pavel Březina <pbrezina@redhat.com>