Work on a better way to manage modules. All one page. Introduce a way to

htdocs/admin/modules.php

htdocs/core/modules/DolibarrModules.class.php

htdocs/core/modules/modCashDesk.class.php

htdocs/core/modules/modLabel.class.php

htdocs/core/modules/modUser.class.php

htdocs/core/modules/modWebServicesClient.class.php

htdocs/core/modules/modWebsite.class.php

htdocs/cron/list.php

htdocs/install/mysql/data/llx_const.sql

htdocs/langs/en_US/admin.lang