RFR : 8211106: [windows] Update OS detection code to recognize Windows Server 2019

[Alan Bateman]

On 19/10/2018 10:22, Baesken, Matthias wrote:
> Thanks for the remarks ,   I updated  my changes , new webrev :
>
> http://cr.openjdk.java.net/~mbaesken/webrevs/8211106.2/
>
Do you know if there is anything on the Microsoft site to explain why 
the minor version wasn't bumped? It looks unusual to have both Windows 
Server 2016 and 2019 report the same major and minor versions.

-Alan