package version metadata for external/

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Change-Id: I40bdf95ad941b3675088a59584ccd663189fd37b
diff --git a/README.version b/README.version
new file mode 100644
index 0000000..9e1f6be
--- /dev/null
+++ b/README.version
@@ -0,0 +1,2 @@
+URL: http://dist.schmorp.de/liblzf/liblzf-3.6.tar.gz
+Version: 3.6