Create a comparator utility to compare 2 parquet files and give a clear message for the differences

### Describe the usage question you have. Please include as many useful details as possible.

We have been using Parquet files in production and would like an automated process for regression testing.

Requirements

1. Sort elements in lists before comparison.

### Component(s)

Build a new module.

未指定文件、测试或入口点；先定位现有的 Parquet Java 模块和测试约定，再设计新的比较器模块。使用所述的回归测试场景来定义比较行为，包括对列表中的元素进行排序。完成的标准是能够比较两个 Parquet 文件，并在一条清晰的消息中报告差异。

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