[FEATURE] Implement settings to (de)activate plugin and features

[JohannesDaniel]

As a provider of a managed service of OpenSearch, I need to be able to (de)activate plugin and features in the service via settings.

The feature is expected to check for each rest request, feature or query, whether the plugin is enabled or not. For the case that one of the listed components is used without activation, an IllegalStateException is expected being thrown.

Furthermore, the settings are expected to check whether the circuit breaker is enabled or not. For the case that the circuit breaker is not enabled, no checks will be applied.