Feature/xoln supplier
CHANGELOG:
### ADDED
- [#522](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/522) Add XOLN supplier and its Service Info
Edited by Pelayo García
CHANGELOG:
### ADDED
- [#522](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/522) Add XOLN supplier and its Service Info