RFR(M) : 8210894 : remove jdk/testlibrary/Asserts

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8210894/webrev.00/index.html
> 1188 lines changed: 252 ins; 591 del; 345 mod; 

Hi all,

could you please review the next clean up of jdk testlibrary? now we are replacing all usages of jdk.testlibrary.Asserts w/ jdk.test.lib.Assert class and remove j.t.Asserts. While working on it, I've also replaced '(../)+lib/testlibrary/' w/  '/lib/testlibrary/' in the touched tests.

webrev: http://cr.openjdk.java.net/~iignatyev//8210894/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8210894
testing: tier[1-3], :jdk_svc, :jdk_security_infra and :jdk_desktop + test/jdk/java/awt tests locally on mac

Thanks,
-- Igor