Add CI and coverage badges to README, update gitignore

Co-authored-by: mustafauysal <[email protected]>

Author: Copilot

.gitignore

@@ -2,6 +2,7 @@ node_modules
 bower_components
 release
 vendor
+includes/classes/Dependencies/**/Tests
 .idea
 *.log
 
@@ -32,3 +33,4 @@ Desktop.ini
 
 # PHPUnit
 .phpunit.result.cache
+coverage.xml

README.md

@@ -1,7 +1,7 @@
 Powered Cache
 =============
 
-![Support Level](https://img.shields.io/badge/support-active-green.svg) [![Release Version](https://img.shields.io/wordpress/plugin/v/powered-cache?label=Release%20Version)](https://github.com/poweredcache/powered-cache/releases) ![WordPress tested up to version](https://img.shields.io/wordpress/plugin/tested/powered-cache?label=WordPress) ![Required PHP Version](https://img.shields.io/wordpress/plugin/required-php/powered-cache?label=PHP)
+![Support Level](https://img.shields.io/badge/support-active-green.svg) [![Release Version](https://img.shields.io/wordpress/plugin/v/powered-cache?label=Release%20Version)](https://github.com/poweredcache/powered-cache/releases) ![WordPress tested up to version](https://img.shields.io/wordpress/plugin/tested/powered-cache?label=WordPress) ![Required PHP Version](https://img.shields.io/wordpress/plugin/required-php/powered-cache?label=PHP) [![CI](https://github.com/poweredcache/powered-cache/actions/workflows/ci.yml/badge.svg)](https://github.com/poweredcache/powered-cache/actions/workflows/ci.yml) [![codecov](https://codecov.io/gh/poweredcache/powered-cache/branch/master/graph/badge.svg)](https://codecov.io/gh/poweredcache/powered-cache)
 
 The most powerful caching and performance suite for WordPress. Easily Improve PageSpeed & Web Vitals Score.