Merge "Teach watchman to ignore buck-out directory"

watchmanconfig

diff --git a/watchmanconfig b/watchmanconfig
new file mode 100644
index 0000000..8d9aeea
--- /dev/null
+++ b/watchmanconfig
@@ -0,0 +1,5 @@
+{
+  "ignore_dirs": [
+    "buck-out"
+  ]
+}