[ADD] add switchboard somconnexio module

CHANGELOG:

### Added
- [#1273](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1273) Add switchboard_somconnexio module

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⚠ Depends on coopdevs/som-connexio/otrs/otrs-somconnexio!303 (merged)