Retries should be added in POA FabricClient Calls.

[khandelwalbrijesh]

RunAsync failed due to an unhandled FabricException causing replica to fault: System.Fabric.FabricTransientException: Operation canceled. ---> System.Runtime.InteropServices.COMException: Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT))
at System.Fabric.Interop.NativeClient.IFabricRepairManagementClient2.EndGetRepairTaskList(IFabricAsyncOperationContext context)
at System.Fabric.FabricClient.RepairManagementClient.GetRepairTaskListAsyncEndWrapper(IFabricAsyncOperationContext context)
at System.Fabric.Interop.AsyncCallOutAdapter2`1.Finish(IFabricAsyncOperationContext context, Boolean expectedCompletedSynchronously)
--- End of inner exception stack trace ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ServiceFabric.PatchOrchestration.CoordinatorService.RepairManagerHelper.d__21.MoveNext() in E:\bt\926921\repo\src\PatchOrchestrationApplication\CoordinatorService\src\RepairManagerHelper.cs:line 266
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ServiceFabric.PatchOrchestration.CoordinatorService.CoordinatorService.d__9.MoveNext() in E:\bt\926921\repo\src\PatchOrchestrationApplication\CoordinatorService\src\CoordinatorService.cs:line 110
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ServiceFabric.PatchOrchestration.CoordinatorService.CoordinatorService.d__8.MoveNext() in E:\bt\926921\repo\src\PatchOrchestrationApplication\CoordinatorService\src\CoordinatorService.cs:line 94
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ServiceFabric.Services.Runtime.StatefulServiceReplicaAdapter.d__12.MoveNext()