Provide information on incomplete vulnerability matching for project

### Current Behavior

DependencyTrack is configured to use multiple sources for vulnerability information; one of which is OSSI.
If access to OSSI fails for whatever reason (e.g. rate limit - but also like https://github.com/DependencyTrack/dependency-track/issues/2857), no sonatype-* vulnerabilities are reported for that project.
In this case, you can have to projects with identical components - but a complete different list of vulnerabilities.
Apparently there is no way for a user to detect if vulnerability matching was complete/successful for all sources.

### Proposed Behavior

Add a status field to the project properties where it is visible whether errors were encountered during vulnerability matching.
This allows the user to actually trust the list of vulnerabilities - and know where they might be incomplete.

### Checklist

- [X] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [X] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this enhancement was already requested