package version metadata for external/

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Change-Id: Ib452b911d00c4ec9b822e5b5280447d1704abe0f
diff --git a/README.version b/README.version
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index 0000000..2ce553f
--- /dev/null
+++ b/README.version
@@ -0,0 +1,3 @@
+URL: http://download.icu-project.org/files/icu4j/52.1/icu4j-52_1.tgz
+Version: 52.1
+BugComponent: 25699