Make parsing Maven projects recursive, and check if the same dir cont…

[gzsombor]

…ains multipe projects, for example Maven and Node

[tbillington]

Hey! Thank you for the pull request 🎉 , I'll have a look at it when I get a chance this week.

[tbillington]

Hmm I might have a think about this, it moves all the work to the first loop of the iteration, I wonder if there's another way to achieve it.

I also wanted to support detecting multiple types of project in the same directory which would complicate this 🤔