Give create permission to KPI expression of mis budget items
CHANGELOG:
### Added
- [#640](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/640) Give create permission to KPI expression of mis budget items
Related card: https://trello.com/c/TVyl4dWu/977-permitir-crear-kpi-expression-en-mis-budget-items
Edited by Pelayo García