Bug 470684 - Pam_passthru plugin doesn't verify account activation
    
    https://bugzilla.redhat.com/show_bug.cgi?id=470684
    Resolves: bug 470684
    Bug Description: Pam passthrough doesn't verify account activation
    Reviewed by: rmeggins
    Branch: Directory_Server_8_2_Branch
    Fix Description: The check_account_lock() has been renamed to
    slapi_check_account_lock() and moved into libslapd.so so any plugins
    can use it. The account_inactivation_only parameter has been replaced
    by check_password_policy. A new parameter send_result has been added
    to determine whether to send LDAP results.
    
    The pam_passthru plugin has been modified to use this function to
    check account activation when the pamIDMapMethod is set to ENTRY.
    The plugin will not check password policy.
    (cherry picked from commit 1ef0ec98b6c91471454647e5f613d26fa015c619)