message: Adding python __str__ to buffer class
diff: @@ -335,6 +335,12 @@ PYBIND11_MODULE(_pyxacc, m) {
  return s.str();
  },
  "")
  + .def("__str__", [](const std::shared_ptr<AcceleratorBuffer> b) {
  + std::stringstream s;
  + b->print(s);
  + return s.str();
  + },
  + "")
  .def("getChildren",
  (std::vector<std::shared_ptr<AcceleratorBuffer>>(
  xacc::AcceleratorBuffer::*)(const std::string, ExtraInfo)) &
  