message: add suffix of model&params in paddle_engine
diff: @@ -166,8 +166,8 @@ class PaddleInferenceEngine : public EngineCore {
  }
  Config config;
  - std::vector<std::string> suffixParaVector = {".pdiparams", "__params__"};
  - std::vector<std::string> suffixModelVector = {".pdmodel", "__model__"};
  + std::vector<std::string> suffixParaVector = {".pdiparams", "__params__", "params"};
  + std::vector<std::string> suffixModelVector = {".pdmodel", "__model__", "model"};
  std::string paraFileName = getFileBySuffix(model_path, suffixParaVector);
  std::string modelFileName = getFileBySuffix(model_path, suffixModelVector);
  