When a system service (metrics, log.saver, explore etc) is stopped, not all the dependent services are stopped

When we stop CDAP master, we stop the system services run as a part of master.

when metrics.processor which is stopped, it stops dependent services
{MetricsCollectionService, MetricsProcessorStatusService, KafkaClientService, ZKClientService, MetricsProcessorService}

we noticed in the logs that all these dependent services were not stopped before terminating the twill runnable.

CDAP FIX VERSIONS
This issue needs to be fixed for:

• -3.3.0 - DONE-

• -3.2.1 - DONE-

• -3.1.3 - DONE-

• -3.0.6 - DONE-

• -2.8.3 - DONE-