[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.*}

Inizia individuando la funzionalità esistente di diff degli array in C++ e le utility di test Java che confrontano i vettori. Definisci l’equivalente Java facendo corrispondere le differenze esposte per l’uguaglianza dei vettori, quindi aggiungi o aggiorna i test che dimostrano la diagnostica risultante.

Scritto dal modello di indicizzazione a partire dal testo della issue.