This re-adds the dbt-graph-theory package by reverting commit 05292945f33bd083b92c1bd85c5ab4239556bc26. It was originally added in https://github.com/dbt-labs/hubcap/pull/222, but the hubcap script + dbt Package Hub couldn't handle packages that contained exclusively pre-releases at the time. The package has a tag representing a final release now, so we can add it back (even though hubcap still has the original issue).
Resolves #230
This re-adds the dbt-graph-theory package by reverting commit 05292945f33bd083b92c1bd85c5ab4239556bc26. It was originally added in https://github.com/dbt-labs/hubcap/pull/222, but the hubcap script + dbt Package Hub couldn't handle packages that contained exclusively pre-releases at the time. The package has a tag representing a final release now, so we can add it back (even though hubcap still has the original issue).