feat: Detect common haskell suffixes (hs,lhs,chs)
feat: Detect common haskell suffixes (hs,lhs,chs)

hs -> haskell
lhs -> literate-haskell    https://wiki.haskell.org/Literate_programming
chs -> c2hs                https://github.com/haskell/c2hs/wiki

Fixes #116

chriskuehl/identify,chriskuehl/identify