Review Request: JDK-8167057 jdeps to list the modules and internal APIs to help find @modules for tests

[Mandy Chung]

Webrev at:
  http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8167057/webrev.00/

This patch enhances jdeps to print the dependences in the format : 
$MODULE[/$PACKAGE].

This is intended for analyzing the regression tests we develop and add make it 
easy to add the proper @modules.

Mandy