Add a README for Github

Author: martinpaljak

README.md

@@ -0,0 +1,5 @@
+# Sun/Oracle JavaCard SDK binaries
+
+- As found from http://www.oracle.com/technetwork/java/embedded/javacard/downloads/javacard-sdk-2043229.html
+- All content is ©®™ by Oracle. For example, see this file: [jc304_kit/legal/Distribution_ReadME.txt](./jc304_kit/legal/Distribution_ReadME.txt)
+- Only necessary binary content (no samples or API documentation), usable with [ant-javacard](https://github.com/martinpaljak/ant-javacard)