Initialize v18 branch

Rename *_usability modules to *_usability_akretion

sale_usability_akretion/wizards/__init__.py

@@ -0,0 +1 @@
+from . import sale_invoice_discount_all_lines

sale_usability_akretion/wizards/sale_invoice_discount_all_lines.py

@@ -0,0 +1,13 @@
+# Copyright 2022 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import models, fields
+
+
+class SaleInvoiceDiscountAllLines(models.TransientModel):
+    _name = 'sale.invoice.discount.all.lines'
+    _description = 'None'
+    # Remove because this feature is now mostly native
+    # TODO 04/07/2024 remove later to avoid ORM bug: it crashes when reloading module
+    # KeyError: 'sale.invoice.discount.all.lines'