Assign reviewers based on prefix in PR title/branch name or specific label

[anawallgren]

If my pull request (or branch) has something like "feature1-" or "feature2-" at the beginning of it, I'd like Pull Assigner to assign it to a certain (configurable) team.

Or:

If my pull request has a label like "feature1" or "feature2", Pull Assigner should assign it to a certain (configurable) team.

Codeowners doesn't help with this, because the files are all in the same directories.