feature request: add ignore packages option

Most kubernetes related projects have unavoidable dependencies like [prometheus](https://github.com/prometheus/client_golang) - arbitrary execution, [client_go](https://github.com/kubernetes/client-go/) - unsafe pointer, exec, system calls, [apimachinery](https://github.com/kubernetes/apimachinery) - reflect.
It would be nice to be able to exclude specified packages from the report.
For better readability it would be nice to specify the packages in a config file like:

```yaml
ignore:
- github.com/prometheus/client_golang
- k8s.io/client-go
- ...
```