Out of the box support for LocalOutputFile with ParquetWriter?

Hi,

It seems that even though it is possible to use ParquetReader with LocalInputFile out of the box, it is not possible to use ParquetWriter with LocalOutputFile.

This forces people to implement their own Builder (as it is abstract) and thus requires to add hadoop dependencies in the classpath.

It would be great if it was possible to do so, cheers!

首先比较 ParquetReader 支持 LocalInputFile 的方式与 issue 中描述的 ParquetWriter builder 路径。无需自定义 Builder 或额外添加 Hadoop 依赖，ParquetWriter 即可直接使用 LocalOutputFile 时，工作就完成了；没有指定具体文件或测试。

由索引模型根据 Issue 内容生成。