* Added unregister extended task
This commit adds a method to unregister extended task when the plugin is deactivated
* Refactored task lists handling
This commit refactors the task lists handling
* Added default task type
This commit adds a default task type
* Fixed method comment
* Moved method to group objects to lib
This commit moves method to group objects to `lib`
* Refactored getUngroupedTasks method
Co-authored-by: Fernando Marichal <contacto@fernandomarichal.com>
Fernando