THRIFT-390. hs: Cabalize Haskell library code

Missed some files that needed to be added.



git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@763030 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/hs/.gitignore b/lib/hs/.gitignore
new file mode 100644
index 0000000..849ddff
--- /dev/null
+++ b/lib/hs/.gitignore
@@ -0,0 +1 @@
+dist/