refactor(account.invoice): stop using replace on views

Stop using replace views as it's a bad practice that can lead into several troubles. Instead

override attributes as needed. Also created an issue on account module to copy changes done in

options for field `res_partner`: account/account#11

l10n_mx_facturae/views/account_invoice.xml

@@ -22,12 +22,10 @@
                     attrs="{'readonly': [('state', 'in', ('paid', 'open', 'cancel'))]}"
                     options="{'no_create':True}"/>
             </field>
-            <xpath expr="//field[@name='partner_id']" position="replace">
-                <field string="Customer" name="partner_id"
-                    on_change="onchange_partner_id(type,partner_id,date_invoice,payment_term, partner_bank_id,company_id)"
-                    groups="base.group_user" context="{'search_default_customer':1, 'show_address': 1, 'default_is_company': 1}"
-                    options="{'always_reload': True,'no_quick_create': True}"
-                    domain="[('customer', '=', True), ('is_company', '=', True)]"/>
+            <xpath expr="//field[@name='partner_id']" position="attributes">
+                <attribute name="context">{'search_default_customer':1, 'show_address': 1, 'default_is_company': 1}</attribute>
+                <attribute name="domain">[('customer', '=', True), ('is_company', '=', True)]</attribute>
+                <attribute name="options">{'always_reload': True,'no_quick_create': True}</attribute>
             </xpath>
         </field>
     </record>