Create Check_Context class #10

Description

Check_Context class will be implemented to provide the context of the plugin being checked. An instance of the Check_context will be available for all checks classes that are run. This will extend the Plugin_Context class and contain all the same methods. This allows checks to use the Check_Context instance to retrieve useful information about the plugin being tested such as the plugin basename, path and URL.

Acceptance Criteria

• The class file Check_Context.php exists within includes/Checker
• Class should extend the Plugin_Context class
• Methods for accessing plugin's main file, path, URL, basename should be there
• PHPUnit tests covering
  • Instance of the class is same as compared to Plugin_Context instance