[IMP] account: add origin as invisible field

Add the source of the invoice on the invoice lines.
It's an hidden field as it's already present on the invoice but this is a
frequent customization request, adding it as invisible to help them.

Closes #9416, task 21073

addons/account/views/account_invoice_view.xml

@@ -394,6 +394,7 @@
                                 <tree string="Invoice Lines" editable="bottom">
                                     <field name="sequence" widget="handle"/>
                                     <field name="product_id"/>
+                                    <field name="origin" invisible="1"/>
                                     <field name="name"/>
                                     <field name="company_id" invisible="1"/>
                                     <field name="account_id" groups="account.group_account_user"
@@ -446,7 +447,7 @@
                             </group>
                             <field name="comment" placeholder="Terms and conditions..."/>
                         </page>
-                        <page string="Other Info">
+                        <page string="Other Info" name="other_info">
                             <group>
                                 <group>
                                     <field name="journal_id" groups="account.group_account_user"

addons/account/views/report_invoice.xml

@@ -58,6 +58,7 @@
                 <thead>
                     <tr>
                         <th>Description</th>
+                        <th class="hidden">Source Document</th>
                         <th class="text-right">Quantity</th>
                         <th class="text-right">Unit Price</th>
                         <th t-if="display_discount" class="text-right" groups="sale.group_discount_per_so_line">Disc.(%)</th>
@@ -68,6 +69,7 @@
                 <tbody class="invoice_tbody">
                     <tr t-foreach="o.invoice_line_ids" t-as="l">
                         <td><span t-field="l.name"/></td>
+                        <td class="hidden"><span t-field="l.origin"/></td>
                         <td class="text-right">
                             <span t-field="l.quantity"/>
                             <span t-field="l.uom_id"  groups="product.group_uom"/>

addons/sale_layout/views/report_invoice_layouted.xml

@@ -11,6 +11,7 @@
             <t t-foreach="p['lines']" t-as="l">
                 <tr>
                     <td><span t-field="l.name"/></td>
+                    <td class="hidden"><span t-field="l.origin"/></td>
                     <td class="text-right">
                         <span t-field="l.quantity"/>
                         <span t-field="l.uom_id"  groups="product.group_uom"/>

addons/sale_stock/account_invoice_view.xml

@@ -6,7 +6,7 @@
         <field name="inherit_id" ref="account.invoice_form"/>
         <field name="arch" type="xml">
             <data>
-                <xpath expr="//field[@name='origin']" position="after">
+                <xpath expr="//page[@name='other_info']//field[@name='origin']" position="after">
                 <field name="incoterms_id" widget="selection" groups="sale.group_display_incoterm"/>
                 </xpath>
             </data>