Change ThriftServer::stopWorkers() to be public
Change ThriftServer::stopWorkers() to be public

Summary: Changing the accessibility of ThriftServer::stopWorkers() to be public for callers that have disabled the stopping of workers upon stopListening() but want to explicitly shut the workers down before the destruction of the ThriftServer instance.

Reviewed By: yfeldblum

Differential Revision: D4611184

fbshipit-source-id: 06aa72bf282e92f3d48915e32c7f7b72eff7f810

SergeyMakarenko/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,facebook/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,SergeyMakarenko/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,getyourguide/fbthrift,facebook/fbthrift,getyourguide/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,getyourguide/fbthrift,facebook/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,getyourguide/fbthrift,getyourguide/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,SergeyMakarenko/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,getyourguide/fbthrift,getyourguide/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,SergeyMakarenko/fbthrift