Initial commit

This includes a rough port of the data types at
https://github.com/graphql/graphql-js/blob/master/src/language/ast.js

graphql.cabal

@@ -0,0 +1,26 @@
+name:                graphql
+version:             0.1
+synopsis:            GraphQL Types
+description:
+  Data types for the GraphQL language.
+homepage:            https://github.com/jdnavarro/graphql-haskell
+bug-reports:         https://github.com/jdnavarro/graphql-haskell/issues
+license:             BSD3
+license-file:        LICENSE
+author:              Danny Navarro
+maintainer:          j@dannynavarro.net
+copyright:           Copyright (C) 2015 J. Daniel Navarro
+category:            Web,Parsing
+build-type:          Simple
+extra-source-files:  README.md CHANGELOG.md stack.yaml
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     Data.GraphQL
+  build-depends:       base >= 4.7 && < 5,
+                       text >=0.11.3.1
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: git://github.com/jdnavarro/graphql-haskell.git