Review Request: JDK-8175193: jlink and `requires static`

[Mandy Chung]

This patch fixes jlink to link modules that has `requires static M`.
jlink does not modify module-info.class. Hence, at runtime if
module M is on the module path and added in the resolved graph.
`requires static` dependency will be satisfied.

Webrev:
  http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8175193/webrev.00/index.html

Mandy