We have duplicate code to create a hierarchy of directories with some files in them. We should refactor the functions.

Reporter: Carlos O'Ryan / @coryan
Assignee: Carlos O'Ryan / @coryan

Related issues:

• [C++] Add filesystem / IO implementation for Google Cloud Storage (is a child of)

PRs and other links:

• GitHub Pull Request #11953

_{Note: This issue was originally created as ARROW-15055. Please see the migration documentation for further details.}