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_meal_voucher/pos_meal_voucher/demo/product_category.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+Copyright (C) 2020 - 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="food_category" model="product.category">
+        <field name="name">Food</field>
+        <field name="parent_id" ref="point_of_sale.product_category_pos" />
+        <field name="meal_voucher_ok" eval="True" />
+    </record>
+
+</odoo>

odoo-bringout-oca-pos-pos_meal_voucher/pos_meal_voucher/demo/product_product.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+Copyright (C) 2020 - 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="bread" model="product.product">
+        <field name="name">Organic Wholemeal Bread</field>
+        <field name="categ_id" ref="food_category" />
+        <field name="meal_voucher_ok" eval="True" />
+        <field name="available_in_pos" eval="True" />
+        <field name="list_price">5.30</field>
+    </record>
+
+</odoo>