Use Flag.RESTART_RESOURCE_SERVICES for child resources of cache

Currently, the attributes for each child resource of a cache use RESTART_ALL_SERVICES, thus any change to one of these attributes requires all services to restart. This is overkill, since only the services of the parent resource (i.e. cache) actually require restarting.

Ideally, each child resource should create a runtime service for its corresponding sub-configuration. e.g. the transaction resource would create a Service<TransactionConfiguration>. Thus the cache resource's add handler becomes much less complex - and the corresponding Service<Configuration> need only depend on the sub-configuration services for each child resource.