Create a wordpress plugin

WordPress-Contributors Plugin This plugin will test if you are familiar with WordPress metabox([login to view URL]) functionality. Goal is to create a plugin so that we can display more than one author-name on a post. Admin-Side: Add a new metabox, labeled “contributors” to WordPress post-editor page. This metabox will display list of authors (wordpress users) with a checkbox for each author. User (author/editor/admin) may tick one or more authors name from the list. When post saves, states of checkboxes for author-list in “contributors” box must be saved as well. Front-end: Use a post-content filter. At the end of post, display a box called “Contributors”. It will have list of authors checked for that post. Show contributor names with their Gravatars. Contributor-names must be clickable and will link to their respective “author” page. (NOTE :: Code Organisation – All 3rd party codes, library must be inside lib folder. No unwanted files e.g. IDE files, temporary files should be committed on git-repo. (Hint: Write a nice .gitignore) Coding Standard – Your code must pass WordPress coding standard. You can use PHP Code Sniffer and JSHint on localhost. Additionally, you can should configure scrutinizer-ci([login to view URL]) so your code quality can be seen easily. Unit Testing – Assignments without unit tests will not be accepted. You may use wp-cli([login to view URL]) to setup unit testing easily.)