[Java] Support equals API in ValueVector to compare two vectors equal #22428
Description
In some case, this feature is useful.
In ARROW-1184, Dictionary#equals not work due to the lack of this API.
Moreover, we already implemented equals(int index, ValueVector target, int targetIndex), so this new added API could reuse it.
Reporter: Ji Liu / @tianchen92
Assignee: Ji Liu / @tianchen92
PRs and other links:
Note: This issue was originally created as ARROW-6022. Please see the migration documentation for further details.