[IMP] Add new snippets and improve views

snippets/account.report_invoice_document.get_position.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<data inherit_id="account.report_invoice_document" sequence="50">
+
+  <xpath expr="//table/thead/tr/th[1]" position="before">
+    <th>
+      <span>Pos</span>
+    </th>
+  </xpath>
+  <xpath expr="//table/tbody/t[3]/tr/t[1]/td[1]" position="before">
+    <td>
+      <span t-esc="o.sale_order_id.get_position(line.product_id)"/>
+    </td>
+  </xpath>
+  
+</data>

snippets/account.report_invoice_document.product_hs_code_and_origin.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <!-- Show custom field country of origin and hs code -->
-<data inherit_id="account.report_invoice_document">
+<data inherit_id="account.report_invoice_document" sequence="50">
 
   <xpath expr="//table/tbody/t[3]/tr/t[1]/td[1]/span" position="after">
     <t t-if="line.product_id.x_country_of_origin">

snippets/sale.view_order_form.show_sequence.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<data inherit_id="sale.view_order_form" sequence="50">
+
+  <field name="display_type" position="before">
+    <field name="sequence"/>
+  </field>
+
+  <xpath expr="//field[@name='order_line']/tree[1]/field[@name='sequence']" position="after">
+    <field name="sequence"/>
+  </xpath>
+
+</data>

snippets/stock.report_picking.get_position.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<data inherit_id="stock.report_picking" sequence="50">
+
+  <xpath expr="//table[1]/thead/tr/th[1]" position="before">
+    <th>
+      <strong>Pos</strong>
+    </th>
+  </xpath>
+  <xpath expr="//table[1]/tbody/t/t/tr/td[1]" position="before">
+    <td>
+      <span t-esc="o.sale_id.get_position(ml.product_id)"/>
+    </td>
+  </xpath>
+  
+</data>

template/ms_custom_module/views/views.xml

@@ -1,7 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
 
-  <record model="ir.ui.view" id="{{ name }}.document_list">
+  <record id="show_position" model="ir.ui.view">
+    <field name="name">sale.view_order_form.show_position</field>
+    <field name="model">sale.order</field>
+    <field name="inherit_id" ref="sale.view_order_form" />
+    <field name="arch" type="xml">
+      <xpath expr="//field[@name='order_line']/tree[1]/field[@name='sequence']" position="after">
+        <field name="position"/>
+      </xpath>
+    </field>
+  </record>
+
+  <record id=".document_list" model="ir.ui.view">
     <field name="name">Document List</field>
     <field name="model">{{ name }}.document</field>
     <field name="arch" type="xml">