RFR: 8087181: Move native jimage code to its own library (maybe libjimage) (against hs-rt)

[Jim Laskey (Oracle)]

Passes JPRT -testset hotspot, and no new fails on -testset pit .

> On Aug 28, 2015, at 2:05 PM, Jim Laskey (Oracle) <james.laskey at oracle.com> wrote:
> 
> https://bugs.openjdk.java.net/browse/JDK-8087181 <https://bugs.openjdk.java.net/browse/JDK-8087181>
> 
> http://cr.openjdk.java.net/~jlaskey/hs-rt/webrev-top
> http://cr.openjdk.java.net/~jlaskey/hs-rt/webrev-jdk
> http://cr.openjdk.java.net/~jlaskey/hs-rt/webrev-hotspot
> 
> 
>