message: dataman: update for change in json api
diff: @@ -487,15 +487,15 @@ nlohmann::json DataManSerializer::DeserializeJson(const char *start,
  nlohmann::json message;
  if (m_UseJsonSerialization == "msgpack")
  {
  - message = nlohmann::json::from_msgpack(start, size);
  + message = nlohmann::json::from_msgpack(start, start + size);
  }
  else if (m_UseJsonSerialization == "cbor")
  {
  - message = nlohmann::json::from_cbor(start, size);
  + message = nlohmann::json::from_cbor(start, start + size);
  }
  else if (m_UseJsonSerialization == "ubjson")
  {
  - message = nlohmann::json::from_ubjson(start, size);
  + message = nlohmann::json::from_ubjson(start, start + size);
  }
  else if (m_UseJsonSerialization == "string")
  {
  