Add definition for DAML

[ghost]

DAML is essentially a dialect of Haskell for the purposes of counting lines.

[XAMPPRocky]

Thank you for your PR! Would you also be able to add a test file under tests/data? You can look at the others as an example and there are also instructions for how to add the file in the CONTRIBUTING.md.

[ghost]

Will do, just trying to find some code with an appropriate license!

[XAMPPRocky]

Thank you again for your PR, and congrats on your first contribution! 🎉