ISPN-4104 Generic store cache child creation fails

* Added ConfiguredBy annotation
** This allows a Cachestore to tell what Configuration to use
* Updated existing cache stores and loaders to define this
* Added parsing support for embedded and server configuration
* Added tests to verify generic loader definitions
* Refactored base configuration builder to reduce code copy for read

https://issues.jboss.org/browse/ISPN-4104
https://issues.jboss.org/browse/ISPN-4103