RFR(S) : 8180888: move jdk.testlibrary.JarUtils to the top level testlibrary

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8180888/webrev.00/index.html
> 354 lines changed: 148 ins; 149 del; 57 mod;

Hi all,

could you please review this changeset which moves JarUtils to the top level testlibrary?

webrev: http://cr.openjdk.java.net/~iignatyev//8180888/webrev.00/index.html
jbs: https://bugs.openjdk.java.net/browse/JDK-8180888
testing: :tier[1-3]

Thanks,
-- Igor