Merge pull request #4964 from commercialhaskell/split-out-subs

snapshot-lts-12.yaml

snapshot-nightly.yaml

snapshot.yaml

stack-lts-12.yaml

stack-nightly.yaml

stack.yaml

subs/convert/.gitignore

subs/convert/convert-old-stackage.sh

subs/convert/make-global-hints.hs

subs/curator/.gitignore

subs/curator/LICENSE

subs/curator/README.md

subs/curator/app/Main.hs

subs/curator/package.yaml

subs/curator/src/Curator.hs

subs/curator/src/Curator/Constants.hs

subs/curator/src/Curator/GithubPings.hs

subs/curator/src/Curator/HackageDistro.hs

subs/curator/src/Curator/Legacy.hs

subs/curator/src/Curator/Repo.hs