Extend GenericCloudEventXacmlMapper to add org/app attributes for app events

[acn-sbuad]

Description

We will need to add additional attributes to all XacmlRequests for events related to an Altinn App.
They should have the org, app, partyid and instance-id attributes included in the request.

We need to add these two parameters to the request if the event represents an app resource.

Consider if this means we should continute to keep the AppCloudEventXacmlMapper or if the logic can be included in GenericCloudEventXacmlMapper as a if check for instance.

Considerations

• The verb to authorize on is also different. Subscribe vs read. Might point to a need to keep the AppCloudEventXacmlMapper separate.

Tasks

• Development
• QA
• Test
• Automated tests

Acceptance criteria

• You can successfully query app events from the /events endpoint and a non empty result set

[SandGrainOne]

@TheTechArch What is the timeline for moving apps into resource registry.