Support editable license in Policy Management

### Current Behavior

When I config the license in Policy Management, it only can choose but cannot editable. I want to limit GPL license to projects, I found that some license name of components are not exactly the same with the name in dependency track system. It cannot modify, so that the license cannot be limited in this scene.

### Proposed Behavior

Customize license name in policy management. We can add, modify license name which not exactly same in our system.

### 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/frontend/issues) for whether this enhancement was already requested

Start with the Policy Management screen described in the issue and reproduce the current choose-only license behavior. Done means allowing a license name to be added or modified, then using the customized name to limit projects when it differs from the Dependency-Track name.

Written by the indexing model from the issue text.