User or Developer story:

As an ACS UI developer, I need the new "Days since CVE Fix was published" field in the GraphQL response for CVE data in Image objects, so that I can display this new data in the appropriate places in the UI.

Acceptance Criteria:

1. "Days since CVE Fix was published" field appears in the GraphQL response for CVE object in an Image context.
2. Unit tests for the modified GraphQL response

Not in Scope (Optional):

 (if required, see Open questions below)

1. Fix timestamp will be a new CVE property that is not shown in the UI - specifically the CVE details page which shows a component list view. A CVE can have a different fix timestamp in different components. 

Note: I recommend we add support for it in MVP if and only if we have the resource bandwidth - this will also make it easier for the customer to debug themselves (without involving RHACS engineering or support) why a particular image/deployment is not firing a violation for a policy with the new grace period from fix timestamp criterion.  Also depending on complexity of UI work, it might need a UI engineer (my hunch is it is should be simple)