RFR(S) : 8180805 : move RandomFactory to the top level testlibrary

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8180805/webrev.00/index.html
> 308 lines changed: 110 ins; 40 del; 158 mod


Hi all,

this changeset introduces jdk.test.lib.RandomFactory in the top level testlibrary and updates all but java/time/ tests to use it instead of jdk.testlibrary.RandomFactory from the jdk testlibrary. due to CODETOOLS-7901987[1], java/time/ tests can't use the top level testlibrary, so jdk.testlibrary.RandomFactory hasn't been removed, however it has been marked as deprecated and will be removed by JDK-8181118[2] as soon as there is promoted jtreg w/ CODETOOLS-7901987 fixed.

webrev: http://cr.openjdk.java.net/~iignatyev//8180805/webrev.00/index.html
jbs: https://bugs.openjdk.java.net/browse/JDK-8180805
testing: :tier[1-3]

[1] https://bugs.openjdk.java.net/browse/CODETOOLS-7901987
[2] https://bugs.openjdk.java.net/browse/JDK-8181118

Thanks,
-- Igor