[BUG] Prevent domain names from triggering WPS347

[webknjaz]

When having flake8-typing-as-t that enforces a pallets-originating convention of doing import t as t. I have it configured with the import t as _t enforcement mode. To follow the same convention with typing-only imports from other modules, I also import the collections.abc module similarly:

import typing as _t

if _t.TYPE_CHECKING:
    from collections import abc as _c

That from collections import abc as _c line incorrectly trips the WPS347 rule check claiming that it's vague.

I however correctly set the _c as a domain name as follows:

# .flake8

# flake8-typing-as-t
# TYT02:
typing-as-t-imported-name = _t

# wemake-python-styleguide
# WPS111:
# `_t` will be enforced by `flake8-typing-as-t`
allowed-domain-names =
  _t,
  _c,

This patch makes the check respect the allowed-domain-names setting thus preventing WPS from reporting a false-positive match.

This is a promptly checked change via a local site-packages modification but is coded in-browser without any additional validation or testing. Feel free to push additional tests into the branch.

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Checklist

• I have double checked that there are no unrelated changes in this pull request (old patches, accidental config files, etc)
• I have created at least one test case for the changes I have made
• I have updated the documentation for the changes I have made
• I have added my changes to the CHANGELOG.md

[sobolevn]

Sounds like a good idea :)
Please, fix the CI.

[webknjaz]

I marked it as a drive-by since it's not a priority.