Create partner check somoffice email wizard

CHANGELOG:

### Added
- [#483](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/483) Add wizard to get partner's email from their SomOffice user

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⚠ DEPENDS ON: https://gitlab.com/coopdevs/somoffice/-/merge_requests/20 ⚠

Wizard view:

If we cannot retrieve the user from SomOffice/Keycloak: