Correct GAV versions in ModelTestControllerVersion

The class org.jboss.as.model.test.ModelTestControllerVersion is used to provide component versioning information for various versions of EAP and Wildfly.

Given a version of EAP, say, 7.2.0, this class can be used to find the maven version for the product maven artifact, as well the maven version of Wildfly Core artifact used, etc.

The maven versions for EAP and Wildfly Core use "productized" versions, incorporating the redhat tag (e.g. org.wildfly.core:wildfly-threads:6.0.11.Final-redhat-1)

Currently, ModelTestControllerVersion uses "productized" version numbers for the EAP maven artifact but not for Wildfly Core maven artifact. This means that this class cannot be used to easily specify the maven version for the Wildfly Core component of the EAP version.