GDPR: Right to erasure

[ced (Cédric Krier)]

@ced

The fields to be erased will be defined as a path from the party record. For example to erase the street field of the addresses: addresses/street, or to erase the bank accounts: bank_accounts/numbers/number.

This syntax does not allow to search for the row to erase because we need to construct the reverse clause for searching the ids of the Model to erase. When there is a Many2Many, we can not be sure to have and find the right reverse Many2Many.
So instead, the fields and records should be defined using a domain from their Model.