* Add first iteration of GitHub actions workflow.

* Remove Travis YML

* Fix linting errors in workflow.

* Testing some Action updates.

* Add coverage and tools.

* Fix YML lint error.

* Update phpcs with checkstyle for reporting.

* Update workflow with cs2pr, adding create all branches shell and phpcs report to PR step.

* Remove diff

* Add php code coverage, and clover results.

* Remove empty workflow, add flag for codecov.

* Add `continue-on-error: true`.

* Change checkstyle to report.

* Update gitignore.

* Update PHPUnit config.

* Set coverage to match current percentage size.

* Update readme, removing travis build status.

* Remove travis from gitattributes.

* Add new helper functions bash file.

* Move shared code into functions.sh.

* Move shared code into functions.sh.

* Update test based on abstract class changes.

* Enhancements to base testcase class.

* Move shared code into functions.sh. and pass argument flags to args.

* Update install wp tests.

* Add codecov badge.

* Don't fail workflow if codecov failes.

* Change source to find from current directory name.

* Add fallback for default.

* Update PHPUnit config.

* Fail test on tests error.

* Remove XML reporting.

* Remove PHPMD ✌🏼

* Change functions for default branch from remote, and fix flags.