Add new file_extensions for INI

- https://coverage.readthedocs.io/en/6.3.2/faq.html#q-can-i-find-out-which-tests-ran-which-lines
- https://pylint.pycqa.org/en/latest/user_guide/usage/run.html#command-line-options
- https://jorisroovers.com/gitlint/configuration/

assets/syntaxes/02_Extra/INI.sublime-syntax

@@ -16,6 +16,9 @@ file_extensions:
   - url
   - URL
   - .editorconfig
+  - .coveragerc
+  - .pylintrc
+  - .gitlint
   - .hgrc
   - hgrc
 scope: source.ini