Implement mapping CRUD view and services
- regular CRUD
- list view
- also include activites (copy from schemas)
(from redmine: issue id 389, created on 2018-01-22tgradl, closed on 2018-01-22)
- regular CRUD
- list view
(from redmine: issue id 389, created on 2018-01-22tgradl, closed on 2018-01-22)