Define an approach to allow the injection of Configuration and GlobalConfiguration beans for overriding

ISPN-3279 removed the ConfigurationOverrides and GlobalConfigurationOverrides classes in the Spring module. These classes contained older set() calls in order to override Cache configurations and given the way that programmatic Configuration currently works in Infinispan, that approach is not maintainable.

We hence need a clean way to provide (Global) Configuration beans as a newer, cleaner approach.