Bug 1446366

This bug is created as a clone of upstream ticket:
https://pagure.io/dogtagpki/issue/2663

When an agent rejects a certificate request the server will trigger a CERT_REQUEST_PROCESSED audit event with a Success outcome. From agent's perspective the request is processed, so a Success is correct. However, from auditor/user's perspective the certificate is not issued (i.e. not processed), so the outcome should have been a Failure.

Steps to reproduce:
1. Install CA
2. Submit a cert request
3. As an agent, reject the request. With PKI CLI it can be done with the following command:

    $ pki -d ~/.dogtag/pki-tomcat/ca/alias/ -c Secret.123 -n caadmin ca-cert-request-review 7 --action reject

Actual result: The server will generate the following audit log:

    [AuditEvent=CERT_REQUEST_PROCESSED]
        [SubjectID=caadmin]
        [Outcome=Success]
        [ReqID=7]
        [InfoName=rejectReason]
        [InfoValue=<null>]
        certificate request processed

Expected result: The outcome for certificate request rejected by agent should be a Failure.

As a comparison, when a certificate is rejected due to profile violation, the outcome is a Failure:

    [AuditEvent=CERT_REQUEST_PROCESSED]
        [SubjectID=$NonRoleUser$]
        [Outcome=Failure]
        [ReqID=7]
        [InfoName=rejectReason]
        [InfoValue=Request 7 Rejected - Subject Name Not Matched UID=testuser]
        certificate request processed

See also http://pki.fedoraproject.org/wiki/CA_Audit_Events.