[ADD] accounting: added a search field to search by balance

Author: yagho-odoo

addons/account/views/account_move_views.xml

@@ -309,6 +309,7 @@
                     <field name="name"/>
                     <field name="ref"/>
                     <field name="invoice_date"/>
+                    <field name="balance"/>
                     <field name="date"/>
                     <field name="date_maturity" string="Due Date"/>
                     <field name="discount_date" string="Discount Date"/>