RFR: JDK-8145789: Switch JDK 9 to use Jib in JPRT

[Erik Joelsson]

Hello,

With Jib support in JDK 9, it would be nice to start using it in JPRT 
instead of having JPRT having to track dependencies and configurations. 
This change enables Jib in JPRT and disables all the JPRT functionality 
for tracking dependencies (build.needs and most configure args).

Bug: https://bugs.openjdk.java.net/browse/JDK-8145789
Webrev: http://cr.openjdk.java.net/~erikj/8145789/webrev.top.01/

/Erik