Enhance CacheManager API so that we can define configurations based on named caches other than the default one and also a way to retrieve Configuration instances from CacheManager without starting the cache:

So, redefine defineCache methods as:

Configuration defineConfiguration(String configurationName, Configuration overrides)
// registers and names a NEW configuration, based on the default cfg and the overrides passed in

Configuration defineConfiguration(String configurationName, String templateName, Configuration overrides)
// registers and names a NEW configuration, based on an existing, predefined configuration and the overrides passed in