API does not in general support updates. Only complete rewrites of object data.

### Current Behavior

When updating a component via the API POST request specifying only the needed attributes (uuid, name and for instance copyright) the result is that all other attributes are wiped.

### Proposed Behavior

Only the attributes specified in the request should be changed.

This request is specifically for the component object but the behavior should be available for all object types.

### 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