Merge changes Ib0dab687,Ia7e45116,I6839ad8b

* changes:
  Turn down OLM power AtoZ and ZtoA in parallel
  Refactor RendererServiceOperationsImpl notify
  Olm Power Down Task

diff --cc renderer/src/main/java/org/opendaylight/transportpce/renderer/provisiondevice/RendererServiceOperationsImpl.java
index cca076fa691a1650fea5b79820bfeba20706afea,0fdf79e0493878256a95c632da61127a0014fec9..a4053de0fe45d665c529fa0682e0b34f2277cf0b
--- 1/renderer/src/main/java/org/opendaylight/transportpce/renderer/provisiondevice/RendererServiceOperationsImpl.java
--- 2/renderer/src/main/java/org/opendaylight/transportpce/renderer/provisiondevice/RendererServiceOperationsImpl.java
+++ b/renderer/src/main/java/org/opendaylight/transportpce/renderer/provisiondevice/RendererServiceOperationsImpl.java
@@@ -36,14 -36,11 +36,15 @@@ import org.opendaylight.transportpce.re
  import org.opendaylight.transportpce.renderer.provisiondevice.servicepath.ServicePathDirection;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.DeviceRenderingRollbackTask;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.DeviceRenderingTask;
 +import org.opendaylight.transportpce.renderer.provisiondevice.tasks.NetworkDeviceRenderingRollbackTask;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.OlmPowerSetupRollbackTask;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.OlmPowerSetupTask;
+ import org.opendaylight.transportpce.renderer.provisiondevice.tasks.OlmPowerTurnDownTask;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.OtnDeviceRenderingTask;
  import org.opendaylight.transportpce.renderer.provisiondevice.tasks.RollbackProcessor;
 +import org.opendaylight.transportpce.renderer.provisiondevice.tasks.RollbackResultMessage;
 +import org.opendaylight.transportpce.renderer.provisiondevice.transaction.history.History;
 +import org.opendaylight.transportpce.renderer.provisiondevice.transaction.history.TransactionHistory;
  import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.Action;
  import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.OtnServicePathInput;
  import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkutils.rev220630.OtnLinkType;

diff --cc renderer/src/test/java/org/opendaylight/transportpce/renderer/provisiondevice/RendererServiceOperationsImplTest.java
Simple merge