[IMP] base: make `res.config.settings` strict about field definitions
[IMP] base: make `res.config.settings` strict about field definitions

This way we avoid wrongly configured fields and triggering a behavior
without knowing it.

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo