[C++][Python] Support start == stop in list_slice kernel

[asfimport]

[GitHub PR 14395 | https://github.com/apache/arrow/pull/14395] adds the list_slice kernel, but does not implement the case where stop == stop, which should return empty lists.

Reporter: Miles Granger / @milesgranger Assignee: Miles Granger / @milesgranger

Related issues:

• [C++] Add kernel for slicing list values (relates to)

PRs and other links:

• GitHub Pull Request #14836

_{Note: This issue was originally created as ARROW-18281. Please see the migration documentation for further details.}