[Java] Implement vector diff functionality

In C++ side, we already have array diff functionality for vector equals and testing to make it easy to see differences between Arrays and reduce debugging time.  And it’s better to do something similar in Java side for better testing facilities.

**Reporter**: [Ji Liu](https://issues.apache.org/jira/browse/ARROW-8019) / @tianchen92

_{**Note**: *This issue was originally created as [ARROW-8019](https://issues.apache.org/jira/browse/ARROW-8019). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}

まず、既存の C++ の配列差分機能と、ベクトルを比較する Java のテストユーティリティを探します。ベクトルの等価性に対して示される差分に合わせて Java 版を定義し、その結果得られる診断を示すテストを追加または更新します。

索引モデルが issue の本文から書いたものです。