Add METADATA to desugar: Apache2=NOTICE am: d61f6e0a07 am: 57576516b2 am: 9fb4079886

Change-Id: Ie207ddc65f3bbad0bcdaa9da6358066614f0c014
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..d97975c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: NOTICE
+}