The wildfly-glow-arquillian-plugin config doesn't account for WildFly Preview

The wildfly-glow-arquillian-plugin config in testsuite/integration/basic hard codes use of 
wildfly-test-galleon-pack, which doesn't work correctly when testing the wildfly-preview feature pack.
 
The test FP to use should be controlled with a maven property, with a maven profile used to set the property when wildfly-preview is being tested.