Sylvie Ye authored Sep 02, 2020 and hydrargyrum committed Sep 09, 2020

Add theses 2 new attributes in order to be more explicite about transfer behavior:
* can_initiate_transfer_to_untrusted_beneficiary: the module can do transfer to untrusted beneficiary, for example:
        when module can't add new beneficiary without doing a transfer like n26
        or when module can do transfer to a beneficiary not listed in `iter_transfer_recipients` like for PSD2 modules
* can_initiate_transfer_without_emitter: the module can do transfer without giving it the emitter, for example:
        there is only, and will be only, one account like wallet
        or when the module can initiate transfer without emitter and the emitter is chosen afterwards like for PSD2 modules