[MOV] crm : regroup views/action/menus definition

- regroup view definitions per models (almost 1 file per big model)
- remove isolated crm_report.xml
- moved content of crm/crm_lead_menu.xml to crm/views/crm_lead_views.xml
- moved content of crm/sales_team_dashboard.xml to crm/views/crm_team_views.xml