Change definition of userdirs.ParseConfigFile and userdirs.ParseConfig

Update go.mod

Add codeql-analysis.yml

Update contributors list in README.md

Merge pull request #15 from adrg/plan9-support

Add Plan 9 support

Merge pull request #13 from adrg/improve-macos-config-paths

Improve macOS config base directory defaults

Minor Windows test cases refactor

Merge pull request #5 from adrg/improve-testing

Improve testing

Update README.md

Merge pull request #2 from wichert/fix-data-searchpath

Fix path for searchDataFile