RFR JDK-8186751: Add ISO-8859-16 Charset support

[Alan Bateman]

On 31/08/2017 03:14, Xueming Shen wrote:
> Hi,
>
> Please help review the changeset to add the 8859_1 charset support.
>
> issue: https://bugs.openjdk.java.net/browse/JDK-8186751
> webrev: http://cr.openjdk.java.net/~sherman/8186751/webrev
Looks good.

-Alan