RFR: JDK-8138960 - Module version is checked incorrectly in libjimage

[Jim Laskey (Oracle)]

Verona pit failing do to NEXT_VERSION +1 .  libjimage code assumed that the module version would be constant until some later date.

http://cr.openjdk.java.net/~jlaskey/8138960/webrev/index.html <http://cr.openjdk.java.net/~jlaskey/8138960/webrev/index.html>

JDK-8138960 <https://bugs.openjdk.java.net/browse/JDK-8138960>

Follow on changes at some later date coming with 
	JDK-8138961 <https://bugs.openjdk.java.net/browse/JDK-8138961> Include version information in jimage locations
        JDK-8138962 <https://bugs.openjdk.java.net/browse/JDK-8138962> Use correct module version from hotspot when using jimage find resource