Determine how to specify an Infinispan CacheManager in an SFSB configuration

See JBAS-7838.

The AS's integration with JBC supports a single CacheManager with multiple name cache configurations. The EJB3 @CacheConfig annotation's "name" attribute is used to specify which cache configuration to use for caching.

Because of JBAS-7838, with Infinispan it's possible there will be multiple CacheManagers. That means

1) there needs to be a mechanism to find the correct one
2) it's theoretically possible the same cache configuration name will appear in two different CacheManager instances.

Using a single attribute on an annotation to express this doesn't map cleanly. We need to sort this so we can design how the AS will expose multiple cache managers.

Options:

A) Add another attribute to @CacheConfig. Not really clean, as this is a general purpose annotation, and this attribute would be "Infinispan-centric".

B) Just leave @CacheConfig as is, have the AS's Infinispan integration reject configurations that use the same cache configuration name in two different CacheManager instances, and have the CacheManagerLocator class in ha-server-api expose a method to find the CacheManager that exposes the config named in @CacheConfig.name.

C) ???