Add INI filenames coveragerc & pylintrc

[wxh06]

Description

Add INI filenames .coveragerc, .pylintrc and pylintrc

Checklist:

• I am associating a language with a new file extension.
  • The new extension is used in hundreds of repositories on GitHub.com
    • Search results for each extension:
      • https://github.com/search?q=filename%3A.coveragerc&type=Code
      • https://github.com/search?q=filename%3A.pylintrc&type=Code
      • https://github.com/search?q=filename%3Apylintrc&type=Code
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample sources:
      • https://github.com/pypa/warehouse/blob/c57752eec2234f70fa3ac67ebb972487b379e465/.coveragerc
      • https://github.com/kubeflow/examples/blob/cc93a80420755f4eb09dc505b79c2d1ec77de46d/.pylintrc https://github.com/google/semantic-locators/blob/a67c4b8a49d7274040c18201e7f70f4f7b4894f3/webdriver_python/.pylintrc
      • https://github.com/PyCQA/bandit/blob/c4372a095f2ccdb6665bc8f3d555957473aeb8b1/pylintrc
    • Sample licenses:
      • Apache-2.0 license
      • Apache-2.0 license Apache-2.0 license
      • Apache-2.0 license
  • I have included a change to the heuristics to distinguish my language from others using the same extension.

Additional information

• .coveragerc
  • https://coverage.readthedocs.io/en/stable/config.html#syntax
• .pylintrc and pylintrc
  • https://pylint.pycqa.org/en/latest/user_guide/run.html#command-line-options
  • https://github.com/PyCQA/pylint/blob/020aea5797eb9f858b44dc6157f4b018234df50a/pylint/config/config_file_parser.py#L112

[wxh06]

I've replaced the sample of .pylintrc with a new one from google/semantic-locators licensed under Apache-2.0.
Now Number of errors (38) is within the acceptable threshold (38).