[IMP] - store last_date_invoiced on contract_line

Improve CRITERIA_ALLOWED_DICT

[IMP] - code improvement

[IMP] - Use last_date_invoiced to set marker in invoice description

[IMP] - add migration script to init last_day_invoiced and some other improvement

[FIX] - a contract line suspended should start a day after the suspension end

contract/views/contract_line.xml

@@ -101,6 +101,8 @@
                 <field name="recurring_next_date"
                        required="1"
                        attrs="{'invisible': [('create_invoice_visibility', '=', False)]}"/>
+                <field name="last_date_invoiced"
+                       groups="base.group_no_one"/>
                 <field name="create_invoice_visibility"
                        invisible="1"/>
                 <field name="is_plan_successor_allowed"