message: Optimize ReaderLcf::ReadString()
diff: @@ -181,10 +181,9 @@ void LcfReader::Read<uint32_t>(std::vector<uint32_t> &buffer, size_t size) {
  }
  void LcfReader::ReadString(std::string& ref, size_t size) {
  - char* chars = new char[size];
  - Read(chars, 1, size);
  - ref = Encode(std::string(chars, size));
  - delete[] chars;
  + ref.resize(size);
  + Read((size > 0 ? &ref.front(): nullptr), 1, size);
  + ref = Encode(ref);
  }
  bool LcfReader::IsOk() const {
  