Update submodules to latest versions

* submodules/ocean v3.3.1(a991c41)...v3.5.5(1047765) (134 commits)
  > Merge tag v3.4.6 into v3.5.x
  > Merge tag v3.4.5 into v3.5.x
  > Fix DaemonApp.onSignal crash on unkown signal
  > Add missing imports in deprecated modules
  > Merge tag v3.4.4 into v3.5.x
  (...)

* submodules/swarm v4.3.2(00fddf8)...v4.4.0(e4ab31c) (22 commits)
  > Time neo requests for which timing stats are configured
  > Add test for neo stats logging without request timing
  > Add facility to disable timing stats for specific requests in test nodes
  > Allow node implementations to turn off timing stats for some neo requests
  > Don't log timing stats for requests without timing info
  (...)

* submodules/turtle v8.0.0(a319c42)...v8.2.1(b32db61) (18 commits)
  > Add a note to remove module ctor in v9.0.0
  > Fix turtle import affecting unittests
  > Fix broken merge of --memcheck feature
  > Collect peak virtual memory usage of the app
  > Refactor TestedApplicationBase kill timer
  (...)

src/dlsproto/client/UsageExamples.d

@@ -23,7 +23,6 @@ version (UnitTest)
     import ocean.task.Scheduler;
     import ocean.task.Task;
     import ocean.util.app.DaemonApp;
-    import ocean.util.log.Logger;
 
     import swarm.neo.authentication.HmacDef : Key;
 
@@ -39,6 +38,8 @@ version (UnitTest)
     // client feature.
     abstract class ExampleApp: DaemonApp
     {
+        import ocean.util.log.Logger;
+
         // DLS client (see dlsproto.client.DlsClient
         private DlsClient dls_client;