Add `fawltydeps` (dependency checker) as a linter.

[samcunliffe]

Is Your Feature Request Related to a Problem? Please Describe

In FOSDEM I saw a talk by the developers of fawltydeps which was quite compelling: they argue that software reproducibility is in "crisis". I.e. dependencies are missing or unneeded in many codebases. They angled it to data science software, but I guess that == research software for these purposes.

Describe the Solution You'd Like

I propse to add this as a 🟢 tool to linters table and the template's linters.

Describe Alternatives You've Considered

AFAIK there are no other tools that do this (yet...?) 👀 .

Additional Context

• Talk at FOSDEM
• Getting started docs

Publicity terminal-cast: