Add missing metadata files. am: 0971b64153

Original change: https://android-review.googlesource.com/c/platform/external/zstd/+/1319087

Change-Id: Id3563d2409053e0420687c8ba0df86b13e036900
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..3d02879
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,16 @@
+name: "zstd"
+description:
+    "Zstandard - Fast real-time compression algorithm"
+
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://github.com/facebook/zstd"
+  }
+  url {
+    type: GIT
+    value: "https://github.com/facebook/zstd"
+  }
+  version: "1.4.5"
+  last_upgrade_date { year: 2020 month: 5 day: 27}
+}
diff --git a/MODULE_LICENSE_BSD b/MODULE_LICENSE_BSD
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_BSD
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..7529cb9
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/system/core:/janitors/OWNERS