[Feature] Custom routing

[Mte90]

Implement a custom route allow to deprecate the Fake_Page library and add something more advanced.

• https://github.com/Brain-WP/Cortex
• https://github.com/joanrodas/plubo-routes
• https://github.com/ssnepenthe/simple-wp-routing
• https://github.com/downshiftorg/wp-router
• https://github.com/DevAly/wordpress-routes