Add METADATA for antlr3

Test: None
Change-Id: I95fcf13e833c59c67347e07074c6341f06e77431
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..377e0f8
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,16 @@
+name: "antlr3"
+description:
+    "ANTLR (ANother Tool for Language Recognition) is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages."
+
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://github.com/antlr/antlr3"
+  }
+  url {
+    type: ARCHIVE
+    value: "https://github.com/antlr/antlr3/archive/antlr-3.4.zip"
+  }
+  version: "3.4"
+  last_upgrade_date { year: 2011 month: 11 day: 15 }
+}