new example

Added a new example that doesn't use ByteBuffer.  I use this example to stimulate TACHYON-68.
print out how to use this example. e.g.

 if (args.length != 3) {
      System.out.println("java -cp target/tachyon-" + Version.VERSION
          + "-jar-with-dependencies.jar "
          + "tachyon.examples.BasicOperations <TachyonMasterAddress> <FilePath> <WriteType>");
      System.exit(-1);
    }