[NEW PORT] devel/py-selectors2: Backported, durable, and portable I/O selectors for Python

[0mp]

Summary

Commit message:

Backported, durable, and portable selectors designed to replace the standard
library selectors module.

This module was originally written for the urllib3 project and later released
as an independent project.

PR: 230873
Submitted by: John W. O'Brien <[e-mail]>

Test Plan

Submitter:

• portlint: OK
• poudriere: OK -- testport on 11.2-RELEASE w/py27 (default)

me:

• portlint: OK
• poudriere testport (11.2 i386) for py27