Add support for jlink and creating slim JRE

We found that right now we are not able to use Adoptiom/Temurin docker base image with the new version of Java 17 because they provide only full JDK docker images which is pretty huge. They encourage users to use jlink. I thought about it how to achieve it with jib and I do not see any easy way how to do it. I found that [someone do it only with jib-core](https://rmannibucau.metawerx.net/jlink-your-java-image-before-putting-it-into-docker-part-3-of-3.html) but I feel this is not much usable. Second option how to do it is create runtime with `maven-jlink-plugin` and then put it into the base docker image as extraDirectories. I think that JIB should contains an easy solution how to easily do it. For example as an extension (you do similar thing for Quarkus).