[9] RFR 8170769: Provide a simple hexdump facility for binary data

[Vincent Ryan]

Thanks to those who provided review comments.

I have incorporated most of them and updated the webrev:
    http://cr.openjdk.java.net/~vinnie/8170769/webrev.01/

The main changes are to tighten up the javadoc spec and to add three additional methods
to support byte array ranges. The total number of public methods is now 7.

I have not added support for InputStream or ByteBuffer. I think what we have in place is
sufficient for now and HexDump can be enhanced later if there is demand.

The other issue is related to streams implementation and I’d like to defer that until later.


I think the API is in good shape now but please let me know if there are any must-fix API issues.
Otherwise I will consider the API finalised and move this forward.

Thanks.