Refactor title and category
	modified:   core/lib/Thelia/Config/Resources/form-api.xml
	modified:   core/lib/Thelia/Config/Resources/routing/api.xml
	modified:   core/lib/Thelia/Controller/Api/CategoryController.php
	modified:   core/lib/Thelia/Controller/Api/TitleController.php
	modified:   core/lib/Thelia/Core/Event/Category/CategoryDeleteEvent.php
	modified:   tests/phpunit/Thelia/Tests/Api/CategoryControllerTest.php
Finish image management