default Stream<? extends RegisteredService> getServicesStream() {
        return load().stream();
    }
Gets services stream.
<p>
The returning stream may be bound to an IO channel (such as database connection),
so it should be properly closed after usage.

@return the services stream
api/cas-server-core-api-services/src/main/java/org/apereo/cas/services/ServiceRegistry.java