big file stat file size overflow

[jimtang9527]

@ReactMethod
  public void stat(String filepath, Promise promise) {
    try {
      File file = new File(filepath);

      if (!file.exists()) throw new Exception("File does not exist");

      WritableMap statMap = Arguments.createMap();

      statMap.putInt("ctime", (int)(file.lastModified() / 1000));
      statMap.putInt("mtime", (int)(file.lastModified() / 1000));
      statMap.putInt("size",(int)file.length());//-->max size 966356656 byte~=970M
      --->statMap.putDouble("size",(double)file.length());
      statMap.putInt("type", file.isDirectory() ? 1 : 0);

      promise.resolve(statMap);
    } catch (Exception ex) {
      ex.printStackTrace();
      reject(promise, filepath, ex);
    }
  }

[johanneslumpe]

A PR is appreciated!