Add support for injectable configuration options

I may have more of a unique situation here, not sure, but I figure something like this would be useful to a lot of people. In my case, I have to test my application against multiple RDBMSs. Amongst the test cases I need to execute, the only deltas between them is really the orm.xml and persistence.xml for JPA, since we override the configuration. Currently, arquillian requires me to point to the files in my test cases. Granted, I could use a static string to manage them, but I was wondering if arquillian could provide something like this in arquillian.xml

<?xml version="1.0"?>
<arquillian xmlns="http://jboss.com/arquillian"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:glassfish="urn:arq:org.jboss.arquillian.container.glassfish.embedded_3">
<glassfish:container>
<glassfish:sunResourcesXml>src/test/resources/sun-resources-mysql.xml</glassfish:sunResourcesXml>
</glassfish:container>
<properties>
<property name="orm-xml" value="src/test/resources/orm-mysql.xml"/>
<property name="persistence-xml" value="src/test/resources/pers-mysql.xml"/>
</properties>
</arquillian>

And then in the test case itself

@Inject ArquillianConfiguration config;

config.getProperty("orm-xml");

in order to access the property.