message: Don't access debug manager when structured exporting
diff: @@ -1241,10 +1241,8 @@ ReplayStatus WrappedID3D11Device::ReadLogInitialisation(RDCFile *rdc, bool store
  if(!IsStructuredExporting(m_State))
  {
  SetupDrawcallPointers(m_Drawcalls, GetFrameRecord().drawcallList);
  - }
  // propagate any UAV names onto counter buffers
  - {
  std::vector<ResourceId> counterBuffers;
  GetDebugManager()->GetCounterBuffers(counterBuffers);
  