RFR: 8142996: move jdk java/util/streams tests into java.base directories

[Jonathan Gibbons]

Please review the following fix to relocate some of the files in the 
jdk/test/java/util/streams directory.

JIRA: https://bugs.openjdk.java.net/browse/JDK-8142996
Webrev: http://cr.openjdk.java.net/~jjg/8142996/webrev.00/

Although the patch touches a lot of files, only the TEST.properties 
files in the webrev were modified (edited). The remaining changes are 
the result of executing the following commands:

     hg rename test/java/util/stream/bootlib/java 
test/java/util/stream/bootlib/java.base/java
     hg rename test/java/util/stream/boottest/java 
test/java/util/stream/boottest/java.base/java

-- Jon