Check status of pybedtools in pip

[afg1]

To get REDIPortal imported, we introduced a dependency on pybedtools.

However, for it to work within the poetry virtual environment management, there needed to be a pyproject.toml in pybedtools. Therefore, I forked the official repo: https://github.com/afg1/pybedtools to add it, and opened a PR to get it merged back into the official repo.

For now, the pipeline depends on my fork, which is suboptimal. This issue is to remind us to check if the pip version of pybedtools works with poetry yet.