feat(pom): add dependency tree

[Sq34sy]

Hi! It would be nice to expand the feature where the dependency tree is output. I think this is currently only possible for npm projects.
I have already made a pull request (#123) which would enable this feature when parsing pom.xml files.

There already exists such another pull request (#107) which it think does have the same goal. There was never an issue made, therefore i am opening one now.

For more technical information please go to my pull request.