[C++][Compute] Add strftime kernel

[asfimport]

To convert timestamps to a string representation with an arbitrary format we require a strftime kernel (the inverse operation of the strptime kernel we already have).

See comments here.

Reporter: Rok Mihevc / @rok
Assignee: Rok Mihevc / @rok
Watchers: Rok Mihevc / @rok

Related issues:

• [C++] C++ array kernels framework and execution buildout (umbrella issue) (is a child of)
• [C++][Dataset] Writing partitions with timestamp type give mis-formatted (integers) directory names (is depended upon by)
• [R] strftime bindings (is depended upon by)

PRs and other links:

• GitHub Pull Request #10647

_{Note: This issue was originally created as ARROW-13174. Please see the migration documentation for further details.}

[asfimport]

Rok Mihevc / @rok:
This should also implement TemporalStrftimeOptions with format and locale properties.

[asfimport]

Antoine Pitrou / @pitrou:
Issue resolved by pull request 10647
#10647