5.1.4.3 Assignments: support for tags

Instructors can use Assignments to create tasks for students to submit. This development will add support for tagging these assignments and filtering the assignment list by these tags.

Test Plan:

1. Make sure sakai.properties tagservice.enabled=true and tagservice.enable.integrations=true are set

2. Enable the tag service (and administration tool) plus the related properties in the QA environment.

3. Add a new assignment and add a few tags to it.

4. Add another assignment and check you can pick the tags created in the previous step.

5. Check you can remove associated tags for an assignment.

6. Head to the assignment list and verify the tags for each assignment are shown in a new column.

7. Use the filter options to select tags and verify only the assignments with the selected tags are shown.

Original description:

La herramienta Assignments (Tareas en la versión en español) del LMS Sakai permite al docente crear tareas que el alumnado debe completar y entregar en unos plazos y con unas características determinadas. El desarrollo añadirá a esta herramienta las funcionalidades de poder organizar las tareas en un esquema de carpetas y subcarpetas, además de permitir el etiquetado de las tareas y su búsqueda a partir de esas etiquetas.