[IMP] crm: kanban customization
- stage model: add field holding the eventual specific legends for kanban
tates and star (priority) management
- crm.lead kanban: use kanban column using group_by_tooltip
- update data and demo data
[IMP] hr_recruitment: applicant kanban customization
- stage model: add field holding the eventual star (priority) management
+ updated applicant kanban view
[IMP] Kanban column management