(11) RFR (S) JDK-8196997: VS2017 The non-Standard std::tr1 namespace and TR1-only machinery are deprecated and will be removed

[Lois Foltan]

Please review this small fix to ignore the VS2017 deprecation warning 
for non-Standard std::tr1 namespace and TR1-only machinery when 
compiling gtest.  A corresponding RFE has been added to upgrade gtest.

open webrev at http://cr.openjdk.java.net/~lfoltan/bug_jdk8196997/webrev/
bug link https://bugs.openjdk.java.net/browse/JDK-8196997
gtest upgrade RFE link https://bugs.openjdk.java.net/browse/JDK-8197951

Thanks,
Lois