Add 'name' and 'description' attributes to <Resource> element in change-sets

It would be good the possibility to add (a optional) 'name' and 'description' to each Resource in change-set. These attribute should be exposed by org.drools.io.Resource The attributes are not going to be exposed through knowledge-api yet. They are going to be implemented in org.drools.io.internal.InternalResource
Even if these attributes don't have any effect in Resource's behavior and functionality, they will server as documentation of the change-set.