Ingest job report could expose if SIP is update

[luis100]

It would be very convinient to identify if an ingest related to a SIP create or update. This information is already available in the SIP information object of the job report: https://github.com/keeps/roda/blob/master/roda-core/roda-core/src/main/java/org/roda/core/plugins/plugins/ingest/EARKSIPToAIPPluginUtils.java#L110

But it is not presented in the web interface nor it is indexed. Also, possibly it is not on the persisted model. It would be very convinient to identify if it is a create or an update for management tasks, specific to deal with failures.