Move all OCA POS modules from oca-technical to dedicated oca-pos submodule

Reorganized 74 POS-related modules for better structure:
- Moved all odoo-bringout-oca-pos-* packages from packages/oca-technical/
- Now organized in dedicated packages/oca-pos/ submodule
- Includes payment, receipt, loyalty, order, product, and partner modules
- Maintains all module functionality while improving project organization

This creates a cleaner separation between general technical modules
and Point of Sale specific functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

odoo-bringout-oca-pos-pos_margin/pos_margin/views/view_pos_order.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+Copyright (C) 2023 - Today: GRAP (http://www.grap.coop)
+@author Sylvain LE GAL (https://twitter.com/legalsylvain)
+License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+<odoo>
+
+    <record id="view_pos_order_tree_inherit" model="ir.ui.view">
+        <field name="model">pos.order</field>
+        <field name="inherit_id" ref="point_of_sale.view_pos_order_tree" />
+        <field name="arch" type="xml">
+            <xpath expr='//field[@name="amount_total"]' position="before">
+                    <field name="margin" widget="monetary" sum="Margin Total" />
+            </xpath>
+        </field>
+    </record>
+
+</odoo>