Add dom-lt package to stackage.

[AndreasPK]

Checklist:

• Meaningful commit message, eg add my-cool-package (please don't mention build-constraints.yml)
• At least 30 minutes have passed since uploading to Hackage
• If applicable, required system libraries are added to 02-apt-get-install.sh or 03-custom-install.sh
• (recommended) Package have been verified to work with the latest nightly snapshot, e.g by running the verify-package script
• (optional) Package is compatible with the latest version of all dependencies (Run cabal update && cabal outdated)

[AndreasPK]

I've tried to run the verify script but got an HTTP exception that seems unrelated. The package doesn't have much in the way of dependencies so should be fine anyway.

[juhp]

Merged, thanks!