RFR: Hotspot jimage API

[Jim Laskey (Oracle)]

This is a description of changes precipitated from  https://bugs.openjdk.java.net/browse/JDK-8087181

https://wiki.se.oracle.com/display/JPG/Hotspot+jimage+API <https://wiki.se.oracle.com/display/JPG/Hotspot+jimage+API>

Cheers,

— Jim