RFR 8168091: jlink should check security permission early when programmatic access is used

[Mandy Chung]

> On Oct 17, 2016, at 10:23 AM, Sundararajan Athijegannathan <sundararajan.athijegannathan at oracle.com> wrote:
> 
> Please review http://cr.openjdk.java.net/~sundar/8168091/webrev.00/ for
> https://bugs.openjdk.java.net/browse/JDK-8168091

The shell test can be removed and use 
   @run main/othervm/secure=java.lang.SecurityManager

You may want to move the classes in jdk.tools.jlink package to jdk.tools.jlink.internal since they are now internal.

Mandy